1056665701 has 16 divisors (see below), whose sum is σ = 1357058304. Its totient is φ = 799691904.

The previous prime is 1056665699. The next prime is 1056665707. The reversal of 1056665701 is 1075666501.

It is a cyclic number.

It is not a de Polignac number, because 1056665701 - 2¹ = 1056665699 is a prime.

It is a super-2 number, since 2×1056665701² = 2233084807339642802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056665707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250336 + ... + 254521.

It is an arithmetic number, because the mean of its divisors is an integer number (84816144).

Almost surely, 2^1056665701 is an apocalyptic number.

It is an amenable number.

1056665701 is a deficient number, since it is larger than the sum of its proper divisors (300392603).

1056665701 is a wasteful number, since it uses less digits than its factorization.

1056665701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504900.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1056665701 is about 32506.3947708755. The cubic root of 1056665701 is about 1018.5426133312.

It can be divided in two parts, 10566 and 65701, that added together give a palindrome (76267).

The spelling of 1056665701 in words is "one billion, fifty-six million, six hundred sixty-five thousand, seven hundred one".