66934772958 has 16 divisors (see below), whose sum is σ = 137134657296. Its totient is φ = 21767405760.

The previous prime is 66934772939. The next prime is 66934772963. The reversal of 66934772958 is 85927743966.

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 7 ways as a sum of consecutive naturals, for example, 136046041 + ... + 136046532.

It is an arithmetic number, because the mean of its divisors is an integer number (8570916081).

Almost surely, 2^66934772958 is an apocalyptic number.

66934772958 is an abundant number, since it is smaller than the sum of its proper divisors (70199884338).

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

66934772958 is a wasteful number, since it uses less digits than its factorization.

66934772958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272092619.

The product of its digits is 137168640, while the sum is 66.

The spelling of 66934772958 in words is "sixty-six billion, nine hundred thirty-four million, seven hundred seventy-two thousand, nine hundred fifty-eight".