163655511330 has 64 divisors (see below), whose sum is σ = 397301345280. Its totient is φ = 43138630656.

The previous prime is 163655511319. The next prime is 163655511347. The reversal of 163655511330 is 33115556361.

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, 12550494 + ... + 12563526.

It is an arithmetic number, because the mean of its divisors is an integer number (6207833520).

Almost surely, 2^163655511330 is an apocalyptic number.

163655511330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163655511330 is an abundant number, since it is smaller than the sum of its proper divisors (233645833950).

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

163655511330 is a wasteful number, since it uses less digits than its factorization.

163655511330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835.

The product of its (nonzero) digits is 121500, while the sum is 39.

The spelling of 163655511330 in words is "one hundred sixty-three billion, six hundred fifty-five million, five hundred eleven thousand, three hundred thirty".