666892146375 has 576 divisors, whose sum is σ = 1571523093504. Its totient is φ = 276212851200.

The previous prime is 666892146317. The next prime is 666892146377. The reversal of 666892146375 is 573641298666.

It is not a de Polignac number, because 666892146375 - 2²⁵ = 666858591943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666892146377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 2407552737 + ... + 2407553013.

It is an arithmetic number, because the mean of its divisors is an integer number (2728338704).

Almost surely, 2^666892146375 is an apocalyptic number.

666892146375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

666892146375 is an abundant number, since it is smaller than the sum of its proper divisors (904630947129).

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

666892146375 is a wasteful number, since it uses less digits than its factorization.

666892146375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 372 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 666892146375 in words is "six hundred sixty-six billion, eight hundred ninety-two million, one hundred forty-six thousand, three hundred seventy-five".