195525377820 has 96 divisors (see below), whose sum is σ = 608633625600. Its totient is φ = 52111605312.

The previous prime is 195525377797. The next prime is 195525377837. The reversal of 195525377820 is 28773525591.

195525377820 is a `hidden beast` number, since 1 + 9 + 5 + 525 + 37 + 7 + 82 + 0 = 666.

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

It is a congruent number.

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, 899361 + ... + 1095399.

It is an arithmetic number, because the mean of its divisors is an integer number (6339933600).

Almost surely, 2^195525377820 is an apocalyptic number.

195525377820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195525377820 is an abundant number, since it is smaller than the sum of its proper divisors (413108247780).

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

195525377820 is a wasteful number, since it uses less digits than its factorization.

195525377820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197904 (or 197896 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 195525377820 in words is "one hundred ninety-five billion, five hundred twenty-five million, three hundred seventy-seven thousand, eight hundred twenty".