66986062242 has 32 divisors (see below), whose sum is σ = 146733721344. Its totient is φ = 20217930000.

The previous prime is 66986062223. The next prime is 66986062331. The reversal of 66986062242 is 24226068966.

66986062242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2005228 + ... + 2038359.

It is an arithmetic number, because the mean of its divisors is an integer number (4585428792).

Almost surely, 2^66986062242 is an apocalyptic number.

66986062242 is an abundant number, since it is smaller than the sum of its proper divisors (79747659102).

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

66986062242 is a wasteful number, since it uses less digits than its factorization.

66986062242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043854.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 66986062242 in words is "sixty-six billion, nine hundred eighty-six million, sixty-two thousand, two hundred forty-two".