22157100655720 has 64 divisors (see below), whose sum is σ = 49970123280000. Its totient is φ = 8842105559808.

The previous prime is 22157100655709. The next prime is 22157100655831. The reversal of 22157100655720 is 2755600175122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403202806 + ... + 403257754.

It is an arithmetic number, because the mean of its divisors is an integer number (780783176250).

Almost surely, 2^{22157100655720} is an apocalyptic number.

22157100655720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22157100655720 is an abundant number, since it is smaller than the sum of its proper divisors (27813022624280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22157100655720 is a wasteful number, since it uses less digits than its factorization.

22157100655720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78362 (or 78358 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 22157100655720 in words is "twenty-two trillion, one hundred fifty-seven billion, one hundred million, six hundred fifty-five thousand, seven hundred twenty".