105157664878 has 64 divisors (see below), whose sum is σ = 196635525120. Its totient is φ = 41189148000.

The previous prime is 105157664873. The next prime is 105157664959. The reversal of 105157664878 is 878466751501.

It is a super-2 number, since 2×105157664878² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105157664873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721903 + ... + 855253.

It is an arithmetic number, because the mean of its divisors is an integer number (3072430080).

Almost surely, 2^105157664878 is an apocalyptic number.

105157664878 is a deficient number, since it is larger than the sum of its proper divisors (91477860242).

105157664878 is a wasteful number, since it uses less digits than its factorization.

105157664878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133493.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 105157664878 in words is "one hundred five billion, one hundred fifty-seven million, six hundred sixty-four thousand, eight hundred seventy-eight".