203156098020 has 72 divisors (see below), whose sum is σ = 617824541880. Its totient is φ = 54035673600.

The previous prime is 203156097997. The next prime is 203156098063. The reversal of 203156098020 is 20890651302.

203156098020 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 560 + 98 + 0 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1341317376 + 201814780644 = 36624^2 + 449238^2 .

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 23 ways as a sum of consecutive naturals, for example, 1380681 + ... + 1520720.

It is an arithmetic number, because the mean of its divisors is an integer number (8580896415).

Almost surely, 2^203156098020 is an apocalyptic number.

203156098020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203156098020 is an abundant number, since it is smaller than the sum of its proper divisors (414668443860).

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

203156098020 is a wasteful number, since it uses less digits than its factorization.

203156098020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901805 (or 2901800 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 203156098020 in words is "two hundred three billion, one hundred fifty-six million, ninety-eight thousand, twenty".