66352624 has 40 divisors (see below), whose sum is σ = 140428512. Its totient is φ = 30186240.

The previous prime is 66352621. The next prime is 66352633. The reversal of 66352624 is 42625366.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66352624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66352621) 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, 12522 + ... + 17014.

Almost surely, 2^66352624 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 66352624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70214256).

66352624 is an abundant number, since it is smaller than the sum of its proper divisors (74075888).

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

66352624 is a wasteful number, since it uses less digits than its factorization.

66352624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585 (or 4579 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 66352624 is about 8145.7120008014. The cubic root of 66352624 is about 404.8424403627.

The spelling of 66352624 in words is "sixty-six million, three hundred fifty-two thousand, six hundred twenty-four".