666231662454 has 32 divisors (see below), whose sum is σ = 1343107215360. Its totient is φ = 220303635552.

The previous prime is 666231662449. The next prime is 666231662461. The reversal of 666231662454 is 454266132666.

666231662454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 666231662397 and 666231662406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7425292 + ... + 7514480.

It is an arithmetic number, because the mean of its divisors is an integer number (41972100480).

Almost surely, 2^666231662454 is an apocalyptic number.

666231662454 is an abundant number, since it is smaller than the sum of its proper divisors (676875552906).

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

666231662454 is a wasteful number, since it uses less digits than its factorization.

666231662454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99124.

The product of its digits is 7464960, while the sum is 51.

The spelling of 666231662454 in words is "six hundred sixty-six billion, two hundred thirty-one million, six hundred sixty-two thousand, four hundred fifty-four".