1668597159908 has 24 divisors (see below), whose sum is σ = 3347096992512. Its totient is φ = 712991067264.

The previous prime is 1668597159899. The next prime is 1668597159917. The reversal of 1668597159908 is 8099517958661.

It is an interprime number because it is at equal distance from previous prime (1668597159899) and next prime (1668597159917).

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, 88407116 + ... + 88425987.

It is an arithmetic number, because the mean of its divisors is an integer number (139462374688).

Almost surely, 2^{1668597159908} is an apocalyptic number.

It is an amenable number.

1668597159908 is an abundant number, since it is smaller than the sum of its proper divisors (1678499832604).

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

1668597159908 is a wasteful number, since it uses less digits than its factorization.

1668597159908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176833451 (or 176833449 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 74.

The spelling of 1668597159908 in words is "one trillion, six hundred sixty-eight billion, five hundred ninety-seven million, one hundred fifty-nine thousand, nine hundred eight".