15535044516 has 96 divisors (see below), whose sum is σ = 39474570240. Its totient is φ = 4735217664.

The previous prime is 15535044493. The next prime is 15535044523. The reversal of 15535044516 is 61544053551.

It is a super-2 number, since 2×15535044516² (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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8520781 + ... + 8522603.

It is an arithmetic number, because the mean of its divisors is an integer number (411193440).

Almost surely, 2^15535044516 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 15535044516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19737285120).

15535044516 is an abundant number, since it is smaller than the sum of its proper divisors (23939525724).

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

15535044516 is a wasteful number, since it uses less digits than its factorization.

15535044516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 15535044516 in words is "fifteen billion, five hundred thirty-five million, forty-four thousand, five hundred sixteen".