20976401624 has 16 divisors (see below), whose sum is σ = 39332302800. Its totient is φ = 10487787552.

The previous prime is 20976401581. The next prime is 20976401653. The reversal of 20976401624 is 42610467902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329474 + ... + 387950.

It is an arithmetic number, because the mean of its divisors is an integer number (2458268925).

Almost surely, 2^20976401624 is an apocalyptic number.

It is an amenable number.

20976401624 is a deficient number, since it is larger than the sum of its proper divisors (18355901176).

20976401624 is a wasteful number, since it uses less digits than its factorization.

20976401624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103322 (or 103318 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 20976401624 in words is "twenty billion, nine hundred seventy-six million, four hundred one thousand, six hundred twenty-four".