64840118 has 16 divisors (see below), whose sum is σ = 111302304. Its totient is φ = 27751680.

The previous prime is 64840109. The next prime is 64840123. The reversal of 64840118 is 81104846.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9638 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (6956394).

Almost surely, 2^64840118 is an apocalyptic number.

64840118 is a deficient number, since it is larger than the sum of its proper divisors (46462186).

64840118 is a wasteful number, since it uses less digits than its factorization.

64840118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 64840118 is about 8052.3361827485. The cubic root of 64840118 is about 401.7426427984.

The spelling of 64840118 in words is "sixty-four million, eight hundred forty thousand, one hundred eighteen".