613644497466 has 1024 divisors, whose sum is σ = 1906252185600. Its totient is φ = 126456422400.

The previous prime is 613644497449. The next prime is 613644497467. The reversal of 613644497466 is 664794446316.

613644497466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (613644497467) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 6894881950 + ... + 6894882038.

It is an arithmetic number, because the mean of its divisors is an integer number (1861574400).

Almost surely, 2^613644497466 is an apocalyptic number.

613644497466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 613644497466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953126092800).

613644497466 is an abundant number, since it is smaller than the sum of its proper divisors (1292607688134).

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

613644497466 is a wasteful number, since it uses less digits than its factorization.

613644497466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its digits is 62705664, while the sum is 60.

The spelling of 613644497466 in words is "six hundred thirteen billion, six hundred forty-four million, four hundred ninety-seven thousand, four hundred sixty-six".