66287275630 has 16 divisors (see below), whose sum is σ = 122541883200. Its totient is φ = 25798290912.

The previous prime is 66287275627. The next prime is 66287275633. The reversal of 66287275630 is 3657278266.

It is an interprime number because it is at equal distance from previous prime (66287275627) and next prime (66287275633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66287275633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89577030 + ... + 89577769.

It is an arithmetic number, because the mean of its divisors is an integer number (7658867700).

Almost surely, 2^66287275630 is an apocalyptic number.

66287275630 is a deficient number, since it is larger than the sum of its proper divisors (56254607570).

66287275630 is a wasteful number, since it uses less digits than its factorization.

66287275630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179154843.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 66287275630 in words is "sixty-six billion, two hundred eighty-seven million, two hundred seventy-five thousand, six hundred thirty".