20126256127020 has 36 divisors (see below), whose sum is σ = 61049643585840. Its totient is φ = 5367001633824.

The previous prime is 20126256127007. The next prime is 20126256127099. The reversal of 20126256127020 is 2072165262102.

20126256127020 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 6 + 2 + 561 + 2 + 70 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 55906266840 + ... + 55906267199.

It is an arithmetic number, because the mean of its divisors is an integer number (1695823432940).

Almost surely, 2^{20126256127020} is an apocalyptic number.

20126256127020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20126256127020 is an abundant number, since it is smaller than the sum of its proper divisors (40923387458820).

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

20126256127020 is a wasteful number, since it uses less digits than its factorization.

20126256127020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111812534054 (or 111812534049 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20126256127020 in words is "twenty trillion, one hundred twenty-six billion, two hundred fifty-six million, one hundred twenty-seven thousand, twenty".