195155515280 has 40 divisors (see below), whose sum is σ = 494985354624. Its totient is φ = 70965641600.

The previous prime is 195155515277. The next prime is 195155515301. The reversal of 195155515280 is 82515551591.

195155515280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110882936 + ... + 110884695.

Almost surely, 2^195155515280 is an apocalyptic number.

195155515280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195155515280 is an abundant number, since it is smaller than the sum of its proper divisors (299829839344).

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

195155515280 is a wasteful number, since it uses less digits than its factorization.

195155515280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221767655 (or 221767649 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 47.

The spelling of 195155515280 in words is "one hundred ninety-five billion, one hundred fifty-five million, five hundred fifteen thousand, two hundred eighty".