220657070 has 32 divisors (see below), whose sum is σ = 431585280. Its totient is φ = 80917920.

The previous prime is 220657061. The next prime is 220657091. The reversal of 220657070 is 70756022.

It is a happy number.

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, 12842 + ... + 24621.

It is an arithmetic number, because the mean of its divisors is an integer number (13487040).

Almost surely, 2^220657070 is an apocalyptic number.

220657070 is a deficient number, since it is larger than the sum of its proper divisors (210928210).

220657070 is a wasteful number, since it uses less digits than its factorization.

220657070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37520.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 220657070 is about 14854.5302854045. The cubic root of 220657070 is about 604.2814774332.

The spelling of 220657070 in words is "two hundred twenty million, six hundred fifty-seven thousand, seventy".