64651016 has 32 divisors (see below), whose sum is σ = 124908960. Its totient is φ = 31352832.

The previous prime is 64651007. The next prime is 64651057. The reversal of 64651016 is 61015646.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64651016.

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, 55496 + ... + 56648.

It is an arithmetic number, because the mean of its divisors is an integer number (3903405).

Almost surely, 2^64651016 is an apocalyptic number.

It is an amenable number.

64651016 is a deficient number, since it is larger than the sum of its proper divisors (60257944).

64651016 is a wasteful number, since it uses less digits than its factorization.

64651016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 64651016 is about 8040.5855508166. The cubic root of 64651016 is about 401.3517103856.

The spelling of 64651016 in words is "sixty-four million, six hundred fifty-one thousand, sixteen".