66731103118272 has 56 divisors (see below), whose sum is σ = 176945721602896. Its totient is φ = 22195027703808.

The previous prime is 66731103118261. The next prime is 66731103118283. The reversal of 66731103118272 is 27281130113766.

It is an interprime number because it is at equal distance from previous prime (66731103118261) and next prime (66731103118283).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 380172463 + ... + 380347950.

Almost surely, 2^{66731103118272} is an apocalyptic number.

It is an amenable number.

66731103118272 is an abundant number, since it is smaller than the sum of its proper divisors (110214618484624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66731103118272 is a wasteful number, since it uses less digits than its factorization.

66731103118272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760520885 (or 760520875 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 66731103118272 in words is "sixty-six trillion, seven hundred thirty-one billion, one hundred three million, one hundred eighteen thousand, two hundred seventy-two".