162122996025 has 81 divisors (see below), whose sum is σ = 308661748941. Its totient is φ = 81327847680.

The previous prime is 162122996023. The next prime is 162122996029. The reversal of 162122996025 is 520699221261.

The square root of 162122996025 is 402645.

It is a perfect power (a square), and thus also a powerful number.

162122996025 is a `hidden beast` number, since 1 + 6 + 2 + 12 + 29 + 9 + 602 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3792219561 + 158330776464 = 61581^2 + 397908^2 .

It is not a de Polignac number, because 162122996025 - 2¹ = 162122996023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (162122996023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 102673686 + ... + 102675264.

Almost surely, 2^162122996025 is an apocalyptic number.

162122996025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

162122996025 is the 402645-th square number.

162122996025 is the 201323-rd centered octagonal number.

It is an amenable number.

162122996025 is a deficient number, since it is larger than the sum of its proper divisors (146538752916).

162122996025 is an equidigital number, since it uses as much as digits as its factorization.

162122996025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 162122996025 in words is "one hundred sixty-two billion, one hundred twenty-two million, nine hundred ninety-six thousand, twenty-five".