163387710684550 has 72 divisors (see below), whose sum is σ = 334047902597136. Its totient is φ = 59412324840000.

The previous prime is 163387710684521. The next prime is 163387710684593. The reversal of 163387710684550 is 55486017783361.

163387710684550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 279102655 + ... + 279687445.

It is an arithmetic number, because the mean of its divisors is an integer number (4639554202738).

Almost surely, 2^{163387710684550} is an apocalyptic number.

163387710684550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163387710684550 is an abundant number, since it is smaller than the sum of its proper divisors (170660191912586).

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

163387710684550 is a wasteful number, since it uses less digits than its factorization.

163387710684550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631006 (or 630990 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 163387710684550 in words is "one hundred sixty-three trillion, three hundred eighty-seven billion, seven hundred ten million, six hundred eighty-four thousand, five hundred fifty".