20272556020 has 24 divisors (see below), whose sum is σ = 43945671168. Its totient is φ = 7847440800.

The previous prime is 20272556011. The next prime is 20272556033. The reversal of 20272556020 is 2065527202.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

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, 16348216 + ... + 16349455.

It is an arithmetic number, because the mean of its divisors is an integer number (1831069632).

Almost surely, 2^20272556020 is an apocalyptic number.

20272556020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20272556020 is an abundant number, since it is smaller than the sum of its proper divisors (23673115148).

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

20272556020 is a wasteful number, since it uses less digits than its factorization.

20272556020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32697711 (or 32697709 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 20272556020 in words is "twenty billion, two hundred seventy-two million, five hundred fifty-six thousand, twenty".