66597122942 has 12 divisors (see below), whose sum is σ = 116205184080. Its totient is φ = 28541624076.

The previous prime is 66597122941. The next prime is 66597122947. The reversal of 66597122942 is 24922179566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66597122941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339781142 + ... + 339781337.

It is an arithmetic number, because the mean of its divisors is an integer number (9683765340).

Almost surely, 2^66597122942 is an apocalyptic number.

66597122942 is a deficient number, since it is larger than the sum of its proper divisors (49608061138).

66597122942 is a wasteful number, since it uses less digits than its factorization.

66597122942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679562495 (or 679562488 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 53.

The spelling of 66597122942 in words is "sixty-six billion, five hundred ninety-seven million, one hundred twenty-two thousand, nine hundred forty-two".