15464660616 has 80 divisors (see below), whose sum is σ = 43406668800. Its totient is φ = 5144021856.

The previous prime is 15464660609. The next prime is 15464660683. The reversal of 15464660616 is 61606646451.

It is a happy number.

15464660616 is a `hidden beast` number, since 1 + 546 + 46 + 6 + 0 + 61 + 6 = 666.

It is a super-2 number, since 2×15464660616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 285481 + ... + 335303.

It is an arithmetic number, because the mean of its divisors is an integer number (542583360).

Almost surely, 2^15464660616 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 15464660616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21703334400).

15464660616 is an abundant number, since it is smaller than the sum of its proper divisors (27942008184).

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

15464660616 is a wasteful number, since it uses less digits than its factorization.

15464660616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50320 (or 50307 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 15464660616 in words is "fifteen billion, four hundred sixty-four million, six hundred sixty thousand, six hundred sixteen".