64616652 has 72 divisors (see below), whose sum is σ = 169442000. Its totient is φ = 20746368.

The previous prime is 64616641. The next prime is 64616653. The reversal of 64616652 is 25661646.

It is a happy number.

64616652 is a `hidden beast` number, since 646 + 1 + 6 + 6 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64616653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184974 + ... + 185322.

Almost surely, 2^64616652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64616652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84721000).

64616652 is an abundant number, since it is smaller than the sum of its proper divisors (104825348).

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

64616652 is a wasteful number, since it uses less digits than its factorization.

64616652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 530 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 64616652 is about 8038.4483577367. The cubic root of 64616652 is about 401.2805875305.

The spelling of 64616652 in words is "sixty-four million, six hundred sixteen thousand, six hundred fifty-two".