64117156811 has 8 divisors (see below), whose sum is σ = 66336230400. Its totient is φ = 61907506920.

The previous prime is 64117156799. The next prime is 64117156823. The reversal of 64117156811 is 11865171146.

It is an interprime number because it is at equal distance from previous prime (64117156799) and next prime (64117156823).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64117156811 is a prime.

It is a super-2 number, since 2×64117156811² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64117186811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2342081 + ... + 2369298.

It is an arithmetic number, because the mean of its divisors is an integer number (8292028800).

Almost surely, 2^64117156811 is an apocalyptic number.

64117156811 is a deficient number, since it is larger than the sum of its proper divisors (2219073589).

64117156811 is a wasteful number, since it uses less digits than its factorization.

64117156811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4711849.

The product of its digits is 40320, while the sum is 41.

The spelling of 64117156811 in words is "sixty-four billion, one hundred seventeen million, one hundred fifty-six thousand, eight hundred eleven".