666473724567000 has 768 divisors, whose sum is σ = 2687938529328000. Its totient is φ = 152320912128000.

The previous prime is 666473724566981. The next prime is 666473724567019. The reversal of 666473724567000 is 765427374666.

It is an interprime number because it is at equal distance from previous prime (666473724566981) and next prime (666473724567019).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16591722916 + ... + 16591763084.

Almost surely, 2^{666473724567000} is an apocalyptic number.

666473724567000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666473724567000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343969264664000).

666473724567000 is an abundant number, since it is smaller than the sum of its proper divisors (2021464804761000).

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

666473724567000 is a wasteful number, since it uses less digits than its factorization.

666473724567000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52754 (or 52727 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 63.

The spelling of 666473724567000 in words is "six hundred sixty-six trillion, four hundred seventy-three billion, seven hundred twenty-four million, five hundred sixty-seven thousand".