20126265656770 has 192 divisors, whose sum is σ = 49968015194880. Its totient is φ = 5679422521344.

The previous prime is 20126265656747. The next prime is 20126265656803. The reversal of 20126265656770 is 7765656262102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1187514 + ... + 6454666.

It is an arithmetic number, because the mean of its divisors is an integer number (260250079140).

Almost surely, 2^{20126265656770} is an apocalyptic number.

20126265656770 is an abundant number, since it is smaller than the sum of its proper divisors (29841749538110).

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

20126265656770 is a wasteful number, since it uses less digits than its factorization.

20126265656770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267229 (or 5267216 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 20126265656770 in words is "twenty trillion, one hundred twenty-six billion, two hundred sixty-five million, six hundred fifty-six thousand, seven hundred seventy".