64157586155 has 16 divisors (see below), whose sum is σ = 85152192384. Its totient is φ = 46097424000.

The previous prime is 64157586091. The next prime is 64157586161. The reversal of 64157586155 is 55168575146.

It is not a de Polignac number, because 64157586155 - 2⁶ = 64157586091 is a prime.

It is a super-2 number, since 2×64157586155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64157586097 and 64157586106.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13335971 + ... + 13340780.

It is an arithmetic number, because the mean of its divisors is an integer number (5322012024).

Almost surely, 2^64157586155 is an apocalyptic number.

64157586155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64157586155 is a deficient number, since it is larger than the sum of its proper divisors (20994606229).

64157586155 is a wasteful number, since it uses less digits than its factorization.

64157586155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26676806.

The product of its digits is 5040000, while the sum is 53.

The spelling of 64157586155 in words is "sixty-four billion, one hundred fifty-seven million, five hundred eighty-six thousand, one hundred fifty-five".