163961925354 has 32 divisors (see below), whose sum is σ = 364406715840. Its totient is φ = 54646942896.

The previous prime is 163961925353. The next prime is 163961925389. The reversal of 163961925354 is 453529169361.

163961925354 is a `hidden beast` number, since 1 + 6 + 3 + 96 + 19 + 2 + 535 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 163961925354.

It is not an unprimeable number, because it can be changed into a prime (163961925353) 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, 237009 + ... + 619755.

It is an arithmetic number, because the mean of its divisors is an integer number (11387709870).

Almost surely, 2^163961925354 is an apocalyptic number.

163961925354 is an abundant number, since it is smaller than the sum of its proper divisors (200444790486).

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

163961925354 is a wasteful number, since it uses less digits than its factorization.

163961925354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390691 (or 390685 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The spelling of 163961925354 in words is "one hundred sixty-three billion, nine hundred sixty-one million, nine hundred twenty-five thousand, three hundred fifty-four".