66901332 has 12 divisors (see below), whose sum is σ = 156103136. Its totient is φ = 22300440.

The previous prime is 66901321. The next prime is 66901343. The reversal of 66901332 is 23310966.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66901321) and next prime (66901343).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) 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 66901332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787544 + ... + 2787567.

Almost surely, 2^66901332 is an apocalyptic number.

It is an amenable number.

66901332 is an abundant number, since it is smaller than the sum of its proper divisors (89201804).

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

66901332 is a wasteful number, since it uses less digits than its factorization.

66901332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575118 (or 5575116 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 66901332 is about 8179.3234439041. The cubic root of 66901332 is about 405.9553365575.

The spelling of 66901332 in words is "sixty-six million, nine hundred one thousand, three hundred thirty-two".