315665655 has 16 divisors (see below), whose sum is σ = 505975680. Its totient is φ = 168051488.

The previous prime is 315665641. The next prime is 315665657. The reversal of 315665655 is 556566513.

It is a cyclic number.

It is not a de Polignac number, because 315665655 - 2⁷ = 315665527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315665657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10245 + ... + 27134.

It is an arithmetic number, because the mean of its divisors is an integer number (31623480).

Almost surely, 2^315665655 is an apocalyptic number.

315665655 is a deficient number, since it is larger than the sum of its proper divisors (190310025).

315665655 is a wasteful number, since it uses less digits than its factorization.

315665655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37950.

The product of its digits is 405000, while the sum is 42.

The square root of 315665655 is about 17766.9821579243. The cubic root of 315665655 is about 680.8881524778. Note that the first 3 decimals are identical.

The spelling of 315665655 in words is "three hundred fifteen million, six hundred sixty-five thousand, six hundred fifty-five".