16021956976 has 20 divisors (see below), whose sum is σ = 31046054344. Its totient is φ = 8010072000.

The previous prime is 16021956913. The next prime is 16021956983. The reversal of 16021956976 is 67965912061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102751 + ... + 206401.

Almost surely, 2^16021956976 is an apocalyptic number.

16021956976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16021956976 is a deficient number, since it is larger than the sum of its proper divisors (15024097368).

16021956976 is a wasteful number, since it uses less digits than its factorization.

16021956976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113320 (or 113314 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 16021956976 in words is "sixteen billion, twenty-one million, nine hundred fifty-six thousand, nine hundred seventy-six".