22397759702820 has 384 divisors, whose sum is σ = 73053731520000. Its totient is φ = 5692128583680.

The previous prime is 22397759702809. The next prime is 22397759702869. The reversal of 22397759702820 is 2820795779322.

22397759702820 is a `hidden beast` number, since 2 + 2 + 39 + 7 + 7 + 597 + 0 + 2 + 8 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 163479706 + ... + 163616654.

It is an arithmetic number, because the mean of its divisors is an integer number (190244092500).

Almost surely, 2^{22397759702820} is an apocalyptic number.

22397759702820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22397759702820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36526865760000).

22397759702820 is an abundant number, since it is smaller than the sum of its proper divisors (50655971817180).

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

22397759702820 is a wasteful number, since it uses less digits than its factorization.

22397759702820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137180 (or 137172 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 22397759702820 in words is "twenty-two trillion, three hundred ninety-seven billion, seven hundred fifty-nine million, seven hundred two thousand, eight hundred twenty".