66455292 has 12 divisors (see below), whose sum is σ = 155062376. Its totient is φ = 22151760.

The previous prime is 66455281. The next prime is 66455297. The reversal of 66455292 is 29255466.

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 (39) 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 66455292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66455297) 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, 2768959 + ... + 2768982.

Almost surely, 2^66455292 is an apocalyptic number.

It is an amenable number.

66455292 is an abundant number, since it is smaller than the sum of its proper divisors (88607084).

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

66455292 is a wasteful number, since it uses less digits than its factorization.

66455292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537948 (or 5537946 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 66455292 is about 8152.0115309045. The cubic root of 66455292 is about 405.0511381852.

The spelling of 66455292 in words is "sixty-six million, four hundred fifty-five thousand, two hundred ninety-two".