220151864 has 16 divisors (see below), whose sum is σ = 414606600. Its totient is φ = 109590112.

The previous prime is 220151861. The next prime is 220151903. The reversal of 220151864 is 468151022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220151861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58799 + ... + 62430.

Almost surely, 2^220151864 is an apocalyptic number.

It is an amenable number.

220151864 is a deficient number, since it is larger than the sum of its proper divisors (194454736).

220151864 is a wasteful number, since it uses less digits than its factorization.

220151864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121462 (or 121458 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 220151864 is about 14837.5154254343. The cubic root of 220151864 is about 603.8199469161.

The spelling of 220151864 in words is "two hundred twenty million, one hundred fifty-one thousand, eight hundred sixty-four".