612160220 has 24 divisors (see below), whose sum is σ = 1469184864. Its totient is φ = 209883456.

The previous prime is 612160189. The next prime is 612160231. The reversal of 612160220 is 22061216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 612160192 and 612160201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2186147 + ... + 2186426.

It is an arithmetic number, because the mean of its divisors is an integer number (61216036).

Almost surely, 2^612160220 is an apocalyptic number.

It is an amenable number.

612160220 is an abundant number, since it is smaller than the sum of its proper divisors (857024644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612160220 is a wasteful number, since it uses less digits than its factorization.

612160220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372589 (or 4372587 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 612160220 is about 24741.8717966123. The cubic root of 612160220 is about 849.0925586853.

The spelling of 612160220 in words is "six hundred twelve million, one hundred sixty thousand, two hundred twenty".