101578108668 has 12 divisors (see below), whose sum is σ = 237015586920. Its totient is φ = 33859369552.

The previous prime is 101578108657. The next prime is 101578108699. The reversal of 101578108668 is 866801875101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×101578108668² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101578108668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232421183 + ... + 4232421206.

It is an arithmetic number, because the mean of its divisors is an integer number (19751298910).

Almost surely, 2^101578108668 is an apocalyptic number.

It is an amenable number.

101578108668 is an abundant number, since it is smaller than the sum of its proper divisors (135437478252).

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

101578108668 is a wasteful number, since it uses less digits than its factorization.

101578108668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464842396 (or 8464842394 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 101578108668 in words is "one hundred one billion, five hundred seventy-eight million, one hundred eight thousand, six hundred sixty-eight".