16331521264 has 10 divisors (see below), whose sum is σ = 31642322480. Its totient is φ = 8165760624.

The previous prime is 16331521259. The next prime is 16331521273. The reversal of 16331521264 is 46212513361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510360024 + ... + 510360055.

It is an arithmetic number, because the mean of its divisors is an integer number (3164232248).

Almost surely, 2^16331521264 is an apocalyptic number.

It is an amenable number.

16331521264 is a deficient number, since it is larger than the sum of its proper divisors (15310801216).

16331521264 is a wasteful number, since it uses less digits than its factorization.

16331521264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020720087 (or 1020720081 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 16331521264 in words is "sixteen billion, three hundred thirty-one million, five hundred twenty-one thousand, two hundred sixty-four".