66102862278 has 16 divisors (see below), whose sum is σ = 132267442176. Its totient is φ = 22024001160.

The previous prime is 66102862229. The next prime is 66102862289. The reversal of 66102862278 is 87226820166.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557638 + ... + 2583353.

It is an arithmetic number, because the mean of its divisors is an integer number (8266715136).

Almost surely, 2^66102862278 is an apocalyptic number.

66102862278 is an abundant number, since it is smaller than the sum of its proper divisors (66164579898).

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

66102862278 is a wasteful number, since it uses less digits than its factorization.

66102862278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143139.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 66102862278 in words is "sixty-six billion, one hundred two million, eight hundred sixty-two thousand, two hundred seventy-eight".