66522264 has 64 divisors (see below), whose sum is σ = 171072000. Its totient is φ = 21548160.

The previous prime is 66522257. The next prime is 66522271. The reversal of 66522264 is 46222566.

It is an interprime number because it is at equal distance from previous prime (66522257) and next prime (66522271).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154129 + ... + 154559.

It is an arithmetic number, because the mean of its divisors is an integer number (2673000).

Almost surely, 2^66522264 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 66522264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85536000).

66522264 is an abundant number, since it is smaller than the sum of its proper divisors (104549736).

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

66522264 is a wasteful number, since it uses less digits than its factorization.

66522264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 604 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 66522264 is about 8156.1181943373. The cubic root of 66522264 is about 405.1871593429.

The spelling of 66522264 in words is "sixty-six million, five hundred twenty-two thousand, two hundred sixty-four".