66700403674 has 8 divisors (see below), whose sum is σ = 102490864308. Its totient is φ = 32536782240.

The previous prime is 66700403663. The next prime is 66700403677. The reversal of 66700403674 is 47630400766.

It can be written as a sum of positive squares in 2 ways, for example, as 65794815025 + 905588649 = 256505^2 + 30093^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 66700403674.

It is not an unprimeable number, because it can be changed into a prime (66700403677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406709697 + ... + 406709860.

Almost surely, 2^66700403674 is an apocalyptic number.

66700403674 is a deficient number, since it is larger than the sum of its proper divisors (35790460634).

66700403674 is a wasteful number, since it uses less digits than its factorization.

66700403674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813419600.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 66700403674 in words is "sixty-six billion, seven hundred million, four hundred three thousand, six hundred seventy-four".