66131283574 has 8 divisors (see below), whose sum is σ = 100074774600. Its totient is φ = 32773025376.

The previous prime is 66131283557. The next prime is 66131283613. The reversal of 66131283574 is 47538213166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146307924 + ... + 146308375.

It is an arithmetic number, because the mean of its divisors is an integer number (12509346825).

Almost surely, 2^66131283574 is an apocalyptic number.

66131283574 is a deficient number, since it is larger than the sum of its proper divisors (33943491026).

66131283574 is a wasteful number, since it uses less digits than its factorization.

66131283574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292616414.

The product of its digits is 725760, while the sum is 46.

The spelling of 66131283574 in words is "sixty-six billion, one hundred thirty-one million, two hundred eighty-three thousand, five hundred seventy-four".