66714371440408 has 32 divisors (see below), whose sum is σ = 127308296322000. Its totient is φ = 32766369664000.

The previous prime is 66714371440403. The next prime is 66714371440411. The reversal of 66714371440408 is 80404417341766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66714371440403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54218593 + ... + 55435408.

Almost surely, 2^{66714371440408} is an apocalyptic number.

It is an amenable number.

66714371440408 is a deficient number, since it is larger than the sum of its proper divisors (60593924881592).

66714371440408 is a wasteful number, since it uses less digits than its factorization.

66714371440408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109655355 (or 109655351 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 66714371440408 in words is "sixty-six trillion, seven hundred fourteen billion, three hundred seventy-one million, four hundred forty thousand, four hundred eight".