1056700666506 has 16 divisors (see below), whose sum is σ = 2148047257248. Its totient is φ = 346459234800.

The previous prime is 1056700666499. The next prime is 1056700666531. The reversal of 1056700666506 is 6056660076501.

It is a happy number.

It is a super-2 number, since 2×1056700666506² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443579780 + ... + 1443580511.

It is an arithmetic number, because the mean of its divisors is an integer number (134252953578).

Almost surely, 2^{1056700666506} is an apocalyptic number.

1056700666506 is an abundant number, since it is smaller than the sum of its proper divisors (1091346590742).

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

1056700666506 is a wasteful number, since it uses less digits than its factorization.

1056700666506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887160357.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 1056700666506 in words is "one trillion, fifty-six billion, seven hundred million, six hundred sixty-six thousand, five hundred six".