66733444007377 has 8 divisors (see below), whose sum is σ = 76266950052096. Its totient is φ = 57199977187872.

The previous prime is 66733444007369. The next prime is 66733444007393. The reversal of 66733444007377 is 77370044433766.

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

It is a cyclic number.

It is not a de Polignac number, because 66733444007377 - 2³ = 66733444007369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66733444004377) 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, 6065548 + ... + 13048285.

It is an arithmetic number, because the mean of its divisors is an integer number (9533368756512).

Almost surely, 2^{66733444007377} is an apocalyptic number.

It is an amenable number.

66733444007377 is a deficient number, since it is larger than the sum of its proper divisors (9533506044719).

66733444007377 is a wasteful number, since it uses less digits than its factorization.

66733444007377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19612607.

The product of its (nonzero) digits is 149361408, while the sum is 61.

The spelling of 66733444007377 in words is "sixty-six trillion, seven hundred thirty-three billion, four hundred forty-four million, seven thousand, three hundred seventy-seven".