64626650 has 24 divisors (see below), whose sum is σ = 131134464. Its totient is φ = 23500400.

The previous prime is 64626649. The next prime is 64626671. The reversal of 64626650 is 5662646.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64626650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58202 + ... + 59301.

It is an arithmetic number, because the mean of its divisors is an integer number (5463936).

Almost surely, 2^64626650 is an apocalyptic number.

64626650 is an abundant number, since it is smaller than the sum of its proper divisors (66507814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64626650 is a wasteful number, since it uses less digits than its factorization.

64626650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117526 (or 117521 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 64626650 is about 8039.0702198700. The cubic root of 64626650 is about 401.3012828997.

The spelling of 64626650 in words is "sixty-four million, six hundred twenty-six thousand, six hundred fifty".