163952641000 has 64 divisors (see below), whose sum is σ = 406216820880. Its totient is φ = 61723340800.

The previous prime is 163952640989. The next prime is 163952641003. The reversal of 163952641000 is 146259361.

It can be written as a sum of positive squares in 8 ways, for example, as 3746174436 + 160206466564 = 61206^2 + 400258^2 .

It is not an unprimeable number, because it can be changed into a prime (163952641003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4805137 + ... + 4839136.

Almost surely, 2^163952641000 is an apocalyptic number.

163952641000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163952641000 is an abundant number, since it is smaller than the sum of its proper divisors (242264179880).

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

163952641000 is a wasteful number, since it uses less digits than its factorization.

163952641000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644311 (or 9644297 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 163952641000 in words is "one hundred sixty-three billion, nine hundred fifty-two million, six hundred forty-one thousand".