66662292 has 12 divisors (see below), whose sum is σ = 155545376. Its totient is φ = 22220760.

The previous prime is 66662291. The next prime is 66662293. The reversal of 66662292 is 29226666.

It is an interprime number because it is at equal distance from previous prime (66662291) and next prime (66662293).

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

It is a super-2 number, since 2×66662292² = 8887722349386528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66662292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66662291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777584 + ... + 2777607.

Almost surely, 2^66662292 is an apocalyptic number.

It is an amenable number.

66662292 is an abundant number, since it is smaller than the sum of its proper divisors (88883084).

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

66662292 is a wasteful number, since it uses less digits than its factorization.

66662292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555198 (or 5555196 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 66662292 is about 8164.6979123541. The cubic root of 66662292 is about 405.4712636421.

The spelling of 66662292 in words is "sixty-six million, six hundred sixty-two thousand, two hundred ninety-two".