20126256130770 has 16 divisors (see below), whose sum is σ = 48303014713920. Its totient is φ = 5367001634864.

The previous prime is 20126256130727. The next prime is 20126256130829. The reversal of 20126256130770 is 7703165262102.

It is a super-2 number, since 2×20126256130770² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 335437602150 + ... + 335437602209.

It is an arithmetic number, because the mean of its divisors is an integer number (3018938419620).

Almost surely, 2^{20126256130770} is an apocalyptic number.

20126256130770 is an abundant number, since it is smaller than the sum of its proper divisors (28176758583150).

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

20126256130770 is a wasteful number, since it uses less digits than its factorization.

20126256130770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670875204369.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 20126256130770 in words is "twenty trillion, one hundred twenty-six billion, two hundred fifty-six million, one hundred thirty thousand, seven hundred seventy".