64610651 has 16 divisors (see below), whose sum is σ = 75441600. Its totient is φ = 54190080.

The previous prime is 64610627. The next prime is 64610653. The reversal of 64610651 is 15601646.

It is not a de Polignac number, because 64610651 - 2¹⁰ = 64609627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64610653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143675 + ... + 144123.

It is an arithmetic number, because the mean of its divisors is an integer number (4715100).

Almost surely, 2^64610651 is an apocalyptic number.

64610651 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

64610651 is a deficient number, since it is larger than the sum of its proper divisors (10830949).

64610651 is a wasteful number, since it uses less digits than its factorization.

64610651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854.

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

The square root of 64610651 is about 8038.0750805152. The cubic root of 64610651 is about 401.2681647299.

The spelling of 64610651 in words is "sixty-four million, six hundred ten thousand, six hundred fifty-one".