20933801415 has 12 divisors (see below), whose sum is σ = 36285255864. Its totient is φ = 11164694064.

The previous prime is 20933801401. The next prime is 20933801423. The reversal of 20933801415 is 51410833902.

20933801415 is a `hidden beast` number, since 209 + 3 + 38 + 0 + 1 + 415 = 666.

It is not a de Polignac number, because 20933801415 - 2⁸ = 20933801159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20933801415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232597749 + ... + 232597838.

It is an arithmetic number, because the mean of its divisors is an integer number (3023771322).

Almost surely, 2^20933801415 is an apocalyptic number.

20933801415 is a deficient number, since it is larger than the sum of its proper divisors (15351454449).

20933801415 is a wasteful number, since it uses less digits than its factorization.

20933801415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465195598 (or 465195595 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 20933801415 in words is "twenty billion, nine hundred thirty-three million, eight hundred one thousand, four hundred fifteen".