660068436454231 has 16 divisors (see below), whose sum is σ = 824504026890240. Its totient is φ = 515315016800640.

The previous prime is 660068436454211. The next prime is 660068436454243. The reversal of 660068436454231 is 132454634860066.

It is not a de Polignac number, because 660068436454231 - 2³³ = 660059846519639 is a prime.

It is a super-2 number, since 2×660068436454231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660068436454211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89464408951 + ... + 89464416328.

It is an arithmetic number, because the mean of its divisors is an integer number (51531501680640).

Almost surely, 2^{660068436454231} is an apocalyptic number.

660068436454231 is a deficient number, since it is larger than the sum of its proper divisors (164435590436009).

660068436454231 is a wasteful number, since it uses less digits than its factorization.

660068436454231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178928825334.

The product of its (nonzero) digits is 59719680, while the sum is 58.

The spelling of 660068436454231 in words is "six hundred sixty trillion, sixty-eight billion, four hundred thirty-six million, four hundred fifty-four thousand, two hundred thirty-one".