666750527546613 has 8 divisors (see below), whose sum is σ = 889082510810208. Its totient is φ = 444459447990384.

The previous prime is 666750527546561. The next prime is 666750527546657. The reversal of 666750527546613 is 316645725057666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 666750527546613 - 2¹⁸ = 666750527284469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666750527546683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10225888806 + ... + 10225954007.

It is an arithmetic number, because the mean of its divisors is an integer number (111135313851276).

Almost surely, 2^{666750527546613} is an apocalyptic number.

It is an amenable number.

666750527546613 is a deficient number, since it is larger than the sum of its proper divisors (222331983263595).

666750527546613 is a wasteful number, since it uses less digits than its factorization.

666750527546613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20451853683.

The product of its (nonzero) digits is 1143072000, while the sum is 69.

The spelling of 666750527546613 in words is "six hundred sixty-six trillion, seven hundred fifty billion, five hundred twenty-seven million, five hundred forty-six thousand, six hundred thirteen".