66054318 has 32 divisors (see below), whose sum is σ = 144529920. Its totient is φ = 19959360.

The previous prime is 66054311. The next prime is 66054319. The reversal of 66054318 is 81345066.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66054311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25771 + ... + 28217.

It is an arithmetic number, because the mean of its divisors is an integer number (4516560).

Almost surely, 2^66054318 is an apocalyptic number.

66054318 is an abundant number, since it is smaller than the sum of its proper divisors (78475602).

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

66054318 is a wasteful number, since it uses less digits than its factorization.

66054318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 66054318 is about 8127.3807588915. The cubic root of 66054318 is about 404.2348363468.

The spelling of 66054318 in words is "sixty-six million, fifty-four thousand, three hundred eighteen".