64135115005 has 32 divisors (see below), whose sum is σ = 84683418624. Its totient is φ = 46333007616.

The previous prime is 64135114997. The next prime is 64135115017. The reversal of 64135115005 is 50051153146.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64135115005 - 2³ = 64135114997 is a prime.

It is a super-2 number, since 2×64135115005² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11505399 + ... + 11510971.

It is an arithmetic number, because the mean of its divisors is an integer number (2646356832).

Almost surely, 2^64135115005 is an apocalyptic number.

64135115005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64135115005 is a deficient number, since it is larger than the sum of its proper divisors (20548303619).

64135115005 is a wasteful number, since it uses less digits than its factorization.

64135115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 64135115005 in words is "sixty-four billion, one hundred thirty-five million, one hundred fifteen thousand, five".