66736666734074 has 16 divisors (see below), whose sum is σ = 101424322412712. Its totient is φ = 32931093984768.

The previous prime is 66736666734061. The next prime is 66736666734083. The reversal of 66736666734074 is 47043766663766.

It can be written as a sum of positive squares in 4 ways, for example, as 46124567331049 + 20612099403025 = 6791507^2 + 4540055^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66736666733989 and 66736666734007.

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, 633627569 + ... + 633732884.

Almost surely, 2^{66736666734074} is an apocalyptic number.

66736666734074 is a deficient number, since it is larger than the sum of its proper divisors (34687655678638).

66736666734074 is a wasteful number, since it uses less digits than its factorization.

66736666734074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267360801.

The product of its (nonzero) digits is 2304433152, while the sum is 71.

The spelling of 66736666734074 in words is "sixty-six trillion, seven hundred thirty-six billion, six hundred sixty-six million, seven hundred thirty-four thousand, seventy-four".