66714367451 has 4 divisors (see below), whose sum is σ = 66872834304. Its totient is φ = 66555900600.

The previous prime is 66714367411. The next prime is 66714367457. The reversal of 66714367451 is 15476341766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66714367451 - 2²² = 66710173147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66714367451.

It is not an unprimeable number, because it can be changed into a prime (66714367457) 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, 79232795 + ... + 79233636.

It is an arithmetic number, because the mean of its divisors is an integer number (16718208576).

Almost surely, 2^66714367451 is an apocalyptic number.

66714367451 is a deficient number, since it is larger than the sum of its proper divisors (158466853).

66714367451 is a wasteful number, since it uses less digits than its factorization.

66714367451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158466852.

The product of its digits is 2540160, while the sum is 50.

The spelling of 66714367451 in words is "sixty-six billion, seven hundred fourteen million, three hundred sixty-seven thousand, four hundred fifty-one".