163965290763672 has 48 divisors (see below), whose sum is σ = 451599317793000. Its totient is φ = 53728739344896.

The previous prime is 163965290763667. The next prime is 163965290763689. The reversal of 163965290763672 is 276367092569361.

163965290763672 is a `hidden beast` number, since 1 + 6 + 3 + 96 + 529 + 0 + 7 + 6 + 3 + 6 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 163965290763672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19299111897 + ... + 19299120392.

Almost surely, 2^{163965290763672} is an apocalyptic number.

163965290763672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163965290763672 is an abundant number, since it is smaller than the sum of its proper divisors (287634027029328).

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

163965290763672 is a wasteful number, since it uses less digits than its factorization.

163965290763672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38598232360 (or 38598232353 counting only the distinct ones).

The product of its (nonzero) digits is 925888320, while the sum is 72.

The spelling of 163965290763672 in words is "one hundred sixty-three trillion, nine hundred sixty-five billion, two hundred ninety million, seven hundred sixty-three thousand, six hundred seventy-two".