163625624250 has 64 divisors (see below), whose sum is σ = 445537722240. Its totient is φ = 39666816000.

The previous prime is 163625624243. The next prime is 163625624341. The reversal of 163625624250 is 52426526361.

It is a super-2 number, since 2×163625624250² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9908455 + ... + 9924954.

It is an arithmetic number, because the mean of its divisors is an integer number (6961526910).

Almost surely, 2^163625624250 is an apocalyptic number.

163625624250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163625624250 is an abundant number, since it is smaller than the sum of its proper divisors (281912097990).

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

163625624250 is a wasteful number, since it uses less digits than its factorization.

163625624250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19833440 (or 19833430 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 163625624250 in words is "one hundred sixty-three billion, six hundred twenty-five million, six hundred twenty-four thousand, two hundred fifty".