195572149550 has 24 divisors (see below), whose sum is σ = 363934618896. Its totient is φ = 78192210240.

The previous prime is 195572149523. The next prime is 195572149573. The reversal of 195572149550 is 55941275591.

It is a junction number, because it is equal to n+sod(n) for n = 195572149492 and 195572149501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808322 + ... + 1022021.

It is an arithmetic number, because the mean of its divisors is an integer number (15163942454).

Almost surely, 2^195572149550 is an apocalyptic number.

195572149550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195572149550 is a deficient number, since it is larger than the sum of its proper divisors (168362469346).

195572149550 is a wasteful number, since it uses less digits than its factorization.

195572149550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832492 (or 1832487 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 53.

The spelling of 195572149550 in words is "one hundred ninety-five billion, five hundred seventy-two million, one hundred forty-nine thousand, five hundred fifty".