163204298025 has 48 divisors (see below), whose sum is σ = 294919838208. Its totient is φ = 79279488000.

The previous prime is 163204298021. The next prime is 163204298029. The reversal of 163204298025 is 520892402361.

It is an interprime number because it is at equal distance from previous prime (163204298021) and next prime (163204298029).

It is not a de Polignac number, because 163204298025 - 2² = 163204298021 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163204298021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2025046 + ... + 2104095.

It is an arithmetic number, because the mean of its divisors is an integer number (6144163296).

Almost surely, 2^163204298025 is an apocalyptic number.

163204298025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163204298025 is a deficient number, since it is larger than the sum of its proper divisors (131715540183).

163204298025 is a wasteful number, since it uses less digits than its factorization.

163204298025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129202 (or 4129197 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 163204298025 in words is "one hundred sixty-three billion, two hundred four million, two hundred ninety-eight thousand, twenty-five".