1056700666507 has 8 divisors (see below), whose sum is σ = 1112772220560. Its totient is φ = 1000674685440.

The previous prime is 1056700666499. The next prime is 1056700666531. The reversal of 1056700666507 is 7056660076501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1056700666507 - 2³ = 1056700666499 is a prime.

It is a super-2 number, since 2×1056700666507² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056700666547) 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, 11345638 + ... + 11438395.

It is an arithmetic number, because the mean of its divisors is an integer number (139096527570).

Almost surely, 2^{1056700666507} is an apocalyptic number.

1056700666507 is a deficient number, since it is larger than the sum of its proper divisors (56071554053).

1056700666507 is a wasteful number, since it uses less digits than its factorization.

1056700666507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22786493.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 1056700666507 in words is "one trillion, fifty-six billion, seven hundred million, six hundred sixty-six thousand, five hundred seven".