54151661616 has 80 divisors (see below), whose sum is σ = 150857844480. Its totient is φ = 16639361280.

The previous prime is 54151661593. The next prime is 54151661617. The reversal of 54151661616 is 61616615145.

It is not an unprimeable number, because it can be changed into a prime (54151661617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402421 + ... + 519851.

It is an arithmetic number, because the mean of its divisors is an integer number (1885723056).

Almost surely, 2^54151661616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54151661616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75428922240).

54151661616 is an abundant number, since it is smaller than the sum of its proper divisors (96706182864).

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

54151661616 is a wasteful number, since it uses less digits than its factorization.

54151661616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118194 (or 118188 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The spelling of 54151661616 in words is "fifty-four billion, one hundred fifty-one million, six hundred sixty-one thousand, six hundred sixteen".