20676365408 has 24 divisors (see below), whose sum is σ = 40711856472. Its totient is φ = 10336846336.

The previous prime is 20676365363. The next prime is 20676365441. The reversal of 20676365408 is 80456367602.

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, 238616 + ... + 313512.

It is an arithmetic number, because the mean of its divisors is an integer number (1696327353).

Almost surely, 2^20676365408 is an apocalyptic number.

It is an amenable number.

20676365408 is a deficient number, since it is larger than the sum of its proper divisors (20035491064).

20676365408 is an equidigital number, since it uses as much as digits as its factorization.

20676365408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83534 (or 83526 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 20676365408 in words is "twenty billion, six hundred seventy-six million, three hundred sixty-five thousand, four hundred eight".