202155512275120 has 80 divisors (see below), whose sum is σ = 471711113556480. Its totient is φ = 80569921324032.

The previous prime is 202155512275097. The next prime is 202155512275121. The reversal of 202155512275120 is 21572215551202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×202155512275120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (202155512275121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115322161 + ... + 117061999.

It is an arithmetic number, because the mean of its divisors is an integer number (5896388919456).

Almost surely, 2^{202155512275120} is an apocalyptic number.

202155512275120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202155512275120 is an abundant number, since it is smaller than the sum of its proper divisors (269555601281360).

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

202155512275120 is a wasteful number, since it uses less digits than its factorization.

202155512275120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745102 (or 1745096 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 40.

The spelling of 202155512275120 in words is "two hundred two trillion, one hundred fifty-five billion, five hundred twelve million, two hundred seventy-five thousand, one hundred twenty".