66263264236 has 24 divisors (see below), whose sum is σ = 125416759104. Its totient is φ = 30451781760.

The previous prime is 66263264233. The next prime is 66263264269. The reversal of 66263264236 is 63246236266.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66263264233) 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, 2722420 + ... + 2746651.

It is an arithmetic number, because the mean of its divisors is an integer number (5225698296).

Almost surely, 2^66263264236 is an apocalyptic number.

It is an amenable number.

66263264236 is a deficient number, since it is larger than the sum of its proper divisors (59153494868).

66263264236 is a wasteful number, since it uses less digits than its factorization.

66263264236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469321 (or 5469319 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 46.

The spelling of 66263264236 in words is "sixty-six billion, two hundred sixty-three million, two hundred sixty-four thousand, two hundred thirty-six".