666315237748 has 12 divisors (see below), whose sum is σ = 1166058762400. Its totient is φ = 333155591352.

The previous prime is 666315237691. The next prime is 666315237751. The reversal of 666315237748 is 847732513666.

It is a super-2 number, since 2×666315237748² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 666315237692 and 666315237701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421465 + ... + 1228927.

Almost surely, 2^666315237748 is an apocalyptic number.

It is an amenable number.

666315237748 is a deficient number, since it is larger than the sum of its proper divisors (499743524652).

666315237748 is a wasteful number, since it uses less digits than its factorization.

666315237748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013766 (or 1013764 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 58.

The spelling of 666315237748 in words is "six hundred sixty-six billion, three hundred fifteen million, two hundred thirty-seven thousand, seven hundred forty-eight".