16499633792 has 16 divisors (see below), whose sum is σ = 32870364450. Its totient is φ = 8249816832.

The previous prime is 16499633791. The next prime is 16499633837. The reversal of 16499633792 is 29733699461.

It can be written as a sum of positive squares in only one way, i.e., 14432658496 + 2066975296 = 120136^2 + 45464^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (16499633791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64451567 + ... + 64451822.

Almost surely, 2^16499633792 is an apocalyptic number.

It is an amenable number.

16499633792 is a deficient number, since it is larger than the sum of its proper divisors (16370730658).

16499633792 is an equidigital number, since it uses as much as digits as its factorization.

16499633792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128903403 (or 128903391 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 59.

The spelling of 16499633792 in words is "sixteen billion, four hundred ninety-nine million, six hundred thirty-three thousand, seven hundred ninety-two".