20525134231162 has 48 divisors (see below), whose sum is σ = 34321073625216. Its totient is φ = 9197288962400.

The previous prime is 20525134231153. The next prime is 20525134231177. The reversal of 20525134231162 is 26113243152502.

It is a happy number.

It is a super-2 number, since 2×20525134231162² (a number of 27 digits) contains 22 as substring.

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, 190546083 + ... + 190653769.

It is an arithmetic number, because the mean of its divisors is an integer number (715022367192).

Almost surely, 2^{20525134231162} is an apocalyptic number.

20525134231162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20525134231162 is a deficient number, since it is larger than the sum of its proper divisors (13795939394054).

20525134231162 is a wasteful number, since it uses less digits than its factorization.

20525134231162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118875 (or 118864 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 20525134231162 its reverse (26113243152502), we get a palindrome (46638377383664).

The spelling of 20525134231162 in words is "twenty trillion, five hundred twenty-five billion, one hundred thirty-four million, two hundred thirty-one thousand, one hundred sixty-two".