701666655 has 16 divisors (see below), whose sum is σ = 1135283040. Its totient is φ = 370016768.

The previous prime is 701666633. The next prime is 701666663. The reversal of 701666655 is 556666107.

It is a cyclic number.

It is not a de Polignac number, because 701666655 - 2²² = 697472351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261462 + ... + 264131.

It is an arithmetic number, because the mean of its divisors is an integer number (70955190).

Almost surely, 2^701666655 is an apocalyptic number.

701666655 is a deficient number, since it is larger than the sum of its proper divisors (433616385).

701666655 is a wasteful number, since it uses less digits than its factorization.

701666655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525690.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 701666655 is about 26488.9912038945. The cubic root of 701666655 is about 888.6081239975.

The spelling of 701666655 in words is "seven hundred one million, six hundred sixty-six thousand, six hundred fifty-five".