16518755532 has 48 divisors (see below), whose sum is σ = 38898444032. Its totient is φ = 5455771200.

The previous prime is 16518755527. The next prime is 16518755537. The reversal of 16518755532 is 23555781561.

It is an interprime number because it is at equal distance from previous prime (16518755527) and next prime (16518755537).

It is not an unprimeable number, because it can be changed into a prime (16518755537) 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, 707883 + ... + 730845.

Almost surely, 2^16518755532 is an apocalyptic number.

16518755532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16518755532 is an abundant number, since it is smaller than the sum of its proper divisors (22379688500).

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

16518755532 is a wasteful number, since it uses less digits than its factorization.

16518755532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23518 (or 23516 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 48.

The spelling of 16518755532 in words is "sixteen billion, five hundred eighteen million, seven hundred fifty-five thousand, five hundred thirty-two".