202155706020 has 24 divisors (see below), whose sum is σ = 566035977024. Its totient is φ = 53908188256.

The previous prime is 202155706013. The next prime is 202155706033. The reversal of 202155706020 is 20607551202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684630824 + ... + 1684630943.

It is an arithmetic number, because the mean of its divisors is an integer number (23584832376).

Almost surely, 2^202155706020 is an apocalyptic number.

202155706020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202155706020 is an abundant number, since it is smaller than the sum of its proper divisors (363880271004).

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

202155706020 is a wasteful number, since it uses less digits than its factorization.

202155706020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369261779 (or 3369261777 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 202155706020 in words is "two hundred two billion, one hundred fifty-five million, seven hundred six thousand, twenty".