16520732088 has 64 divisors (see below), whose sum is σ = 47211640320. Its totient is φ = 4719254400.

The previous prime is 16520732029. The next prime is 16520732099. The reversal of 16520732088 is 88023702561.

It is a Cunningham number, because it is equal to 128533²-1.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537053 + ... + 1547763.

It is an arithmetic number, because the mean of its divisors is an integer number (737681880).

Almost surely, 2^16520732088 is an apocalyptic number.

It is an amenable number.

16520732088 is an abundant number, since it is smaller than the sum of its proper divisors (30690908232).

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

16520732088 is a wasteful number, since it uses less digits than its factorization.

16520732088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19908 (or 19904 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 16520732088 in words is "sixteen billion, five hundred twenty million, seven hundred thirty-two thousand, eighty-eight".