667126607755 has 32 divisors (see below), whose sum is σ = 852735817728. Its totient is φ = 499972704000.

The previous prime is 667126607747. The next prime is 667126607767. The reversal of 667126607755 is 557706621766.

It is not a de Polignac number, because 667126607755 - 2³ = 667126607747 is a prime.

It is a super-2 number, since 2×667126607755² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 667126607755.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962367 + ... + 1503463.

It is an arithmetic number, because the mean of its divisors is an integer number (26647994304).

Almost surely, 2^667126607755 is an apocalyptic number.

667126607755 is a deficient number, since it is larger than the sum of its proper divisors (185609209973).

667126607755 is a wasteful number, since it uses less digits than its factorization.

667126607755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541347.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 667126607755 in words is "six hundred sixty-seven billion, one hundred twenty-six million, six hundred seven thousand, seven hundred fifty-five".