163112890520 has 32 divisors (see below), whose sum is σ = 368310093120. Its totient is φ = 65012962560.

The previous prime is 163112890519. The next prime is 163112890547. The reversal of 163112890520 is 25098211361.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244672 + ... + 7267151.

It is an arithmetic number, because the mean of its divisors is an integer number (11509690410).

Almost surely, 2^163112890520 is an apocalyptic number.

163112890520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163112890520 is an abundant number, since it is smaller than the sum of its proper divisors (205197202600).

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

163112890520 is a wasteful number, since it uses less digits than its factorization.

163112890520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14512115 (or 14512111 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 163112890520 in words is "one hundred sixty-three billion, one hundred twelve million, eight hundred ninety thousand, five hundred twenty".