612454166924544 has 2016 divisors, whose sum is σ = 2216242141102080. Its totient is φ = 165168510566400.

The previous prime is 612454166924543. The next prime is 612454166924557. The reversal of 612454166924544 is 445429661454216.

It is a happy number.

612454166924544 is a `hidden beast` number, since 6 + 1 + 2 + 4 + 5 + 4 + 1 + 6 + 69 + 24 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612454166924543) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 327340547929 + ... + 327340549799.

It is an arithmetic number, because the mean of its divisors is an integer number (1099326458880).

Almost surely, 2^{612454166924544} is an apocalyptic number.

612454166924544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612454166924544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108121070551040).

612454166924544 is an abundant number, since it is smaller than the sum of its proper divisors (1603787974177536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612454166924544 is a wasteful number, since it uses less digits than its factorization.

612454166924544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2110 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 63.

The spelling of 612454166924544 in words is "six hundred twelve trillion, four hundred fifty-four billion, one hundred sixty-six million, nine hundred twenty-four thousand, five hundred forty-four".