195158678688816 has 320 divisors, whose sum is σ = 549352295202816. Its totient is φ = 59543353267200.

The previous prime is 195158678688773. The next prime is 195158678688829. The reversal of 195158678688816 is 618886876851591.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 528398451 + ... + 528767661.

Almost surely, 2^{195158678688816} is an apocalyptic number.

195158678688816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195158678688816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274676147601408).

195158678688816 is an abundant number, since it is smaller than the sum of its proper divisors (354193616514000).

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

195158678688816 is a wasteful number, since it uses less digits than its factorization.

195158678688816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369520 (or 369514 counting only the distinct ones).

The product of its digits is 11147673600, while the sum is 87.

The spelling of 195158678688816 in words is "one hundred ninety-five trillion, one hundred fifty-eight billion, six hundred seventy-eight million, six hundred eighty-eight thousand, eight hundred sixteen".