66071461692 has 24 divisors (see below), whose sum is σ = 154241531136. Its totient is φ = 22013136688.

The previous prime is 66071461679. The next prime is 66071461711. The reversal of 66071461692 is 29616417066.

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, 1309698 + ... + 1359209.

It is an arithmetic number, because the mean of its divisors is an integer number (6426730464).

Almost surely, 2^66071461692 is an apocalyptic number.

It is an amenable number.

66071461692 is an abundant number, since it is smaller than the sum of its proper divisors (88170069444).

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

66071461692 is a wasteful number, since it uses less digits than its factorization.

66071461692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670977 (or 2670975 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 66071461692 in words is "sixty-six billion, seventy-one million, four hundred sixty-one thousand, six hundred ninety-two".