64115304099 has 64 divisors (see below), whose sum is σ = 108525339648. Its totient is φ = 32701132800.

The previous prime is 64115304061. The next prime is 64115304119. The reversal of 64115304099 is 99040351146.

It is a Cunningham number, because it is equal to 253210²-1.

It is not a de Polignac number, because 64115304099 - 2²⁷ = 63981086371 is a prime.

It is a super-2 number, since 2×64115304099² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64115304099.

It is not an unprimeable number, because it can be changed into a prime (64115304299) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8352127 + ... + 8359799.

It is an arithmetic number, because the mean of its divisors is an integer number (1695708432).

Almost surely, 2^64115304099 is an apocalyptic number.

64115304099 is a deficient number, since it is larger than the sum of its proper divisors (44410035549).

64115304099 is a wasteful number, since it uses less digits than its factorization.

64115304099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8348.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 64115304099 in words is "sixty-four billion, one hundred fifteen million, three hundred four thousand, ninety-nine".