64115368 has 8 divisors (see below), whose sum is σ = 120216330. Its totient is φ = 32057680.

The previous prime is 64115341. The next prime is 64115371. The reversal of 64115368 is 86351146.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61811044 + 2304324 = 7862^2 + 1518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64115368² = 8221560827550848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4007203 + ... + 4007218.

Almost surely, 2^64115368 is an apocalyptic number.

It is an amenable number.

64115368 is a deficient number, since it is larger than the sum of its proper divisors (56100962).

64115368 is a wasteful number, since it uses less digits than its factorization.

64115368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014427 (or 8014423 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 64115368 is about 8007.2072534686. The cubic root of 64115368 is about 400.2402057242.

The spelling of 64115368 in words is "sixty-four million, one hundred fifteen thousand, three hundred sixty-eight".