195377163264 has 264 divisors, whose sum is σ = 600881915088. Its totient is φ = 63362580480.

The previous prime is 195377163239. The next prime is 195377163307. The reversal of 195377163264 is 462361773591.

195377163264 is a `hidden beast` number, since 1 + 9 + 5 + 377 + 1 + 6 + 3 + 264 = 666.

It is a super-2 number, since 2×195377163264² (a number of 23 digits) contains 22 as substring.

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 195377163264.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9196174 + ... + 9217394.

Almost surely, 2^195377163264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195377163264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300440957544).

195377163264 is an abundant number, since it is smaller than the sum of its proper divisors (405504751824).

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

195377163264 is an equidigital number, since it uses as much as digits as its factorization.

195377163264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21293 (or 21263 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The spelling of 195377163264 in words is "one hundred ninety-five billion, three hundred seventy-seven million, one hundred sixty-three thousand, two hundred sixty-four".