64650606 has 16 divisors (see below), whose sum is σ = 131421648. Its totient is φ = 21196800.

The previous prime is 64650601. The next prime is 64650623. The reversal of 64650606 is 60605646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64650601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87955 + ... + 88686.

It is an arithmetic number, because the mean of its divisors is an integer number (8213853).

Almost surely, 2^64650606 is an apocalyptic number.

64650606 is an abundant number, since it is smaller than the sum of its proper divisors (66771042).

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

64650606 is a wasteful number, since it uses less digits than its factorization.

64650606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176707.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 64650606 is about 8040.5600551205. The cubic root of 64650606 is about 401.3508619610.

It can be divided in two parts, 64650 and 606, that added together give a palindrome (65256).

The spelling of 64650606 in words is "sixty-four million, six hundred fifty thousand, six hundred six".