7131807012666 has 16 divisors (see below), whose sum is σ = 16301273171904. Its totient is φ = 2037659146464.

The previous prime is 7131807012611. The next prime is 7131807012667. The reversal of 7131807012666 is 6662107081317.

It is not an unprimeable number, because it can be changed into a prime (7131807012667) 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, 84902464395 + ... + 84902464478.

It is an arithmetic number, because the mean of its divisors is an integer number (1018829573244).

Almost surely, 2^{7131807012666} is an apocalyptic number.

7131807012666 is an abundant number, since it is smaller than the sum of its proper divisors (9169466159238).

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

7131807012666 is a wasteful number, since it uses less digits than its factorization.

7131807012666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169804928885.

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

The spelling of 7131807012666 in words is "seven trillion, one hundred thirty-one billion, eight hundred seven million, twelve thousand, six hundred sixty-six".