1915791216168 has 32 divisors (see below), whose sum is σ = 4800908800800. Its totient is φ = 637072970688.

The previous prime is 1915791216113. The next prime is 1915791216221. The reversal of 1915791216168 is 8616121975191.

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, 95246071 + ... + 95266182.

It is an arithmetic number, because the mean of its divisors is an integer number (150028400025).

Almost surely, 2^{1915791216168} is an apocalyptic number.

It is an amenable number.

1915791216168 is an abundant number, since it is smaller than the sum of its proper divisors (2885117584632).

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

1915791216168 is a wasteful number, since it uses less digits than its factorization.

1915791216168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190512681 (or 190512677 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 57.

The spelling of 1915791216168 in words is "one trillion, nine hundred fifteen billion, seven hundred ninety-one million, two hundred sixteen thousand, one hundred sixty-eight".