64065650 has 24 divisors (see below), whose sum is σ = 129996144. Its totient is φ = 23296400.

The previous prime is 64065647. The next prime is 64065697. The reversal of 64065650 is 5656046.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57692 + ... + 58791.

It is an arithmetic number, because the mean of its divisors is an integer number (5416506).

Almost surely, 2^64065650 is an apocalyptic number.

64065650 is an abundant number, since it is smaller than the sum of its proper divisors (65930494).

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

64065650 is a wasteful number, since it uses less digits than its factorization.

64065650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116506 (or 116501 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 64065650 is about 8004.1020733122. The cubic root of 64065650 is about 400.1367240943.

The spelling of 64065650 in words is "sixty-four million, sixty-five thousand, six hundred fifty".