101178608538 has 32 divisors (see below), whose sum is σ = 235985097600. Its totient is φ = 28908173280.

The previous prime is 101178608507. The next prime is 101178608543. The reversal of 101178608538 is 835806871101.

It is a super-2 number, since 2×101178608538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24579723 + ... + 24583838.

It is an arithmetic number, because the mean of its divisors is an integer number (7374534300).

Almost surely, 2^101178608538 is an apocalyptic number.

101178608538 is an abundant number, since it is smaller than the sum of its proper divisors (134806489062).

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

101178608538 is an equidigital number, since it uses as much as digits as its factorization.

101178608538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49163587 (or 49163573 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 101178608538 in words is "one hundred one billion, one hundred seventy-eight million, six hundred eight thousand, five hundred thirty-eight".