3155345220 has 48 divisors (see below), whose sum is σ = 8837478720. Its totient is φ = 841186176.

The previous prime is 3155345209. The next prime is 3155345239. The reversal of 3155345220 is 225435513.

3155345220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334894 + ... + 344186.

It is an arithmetic number, because the mean of its divisors is an integer number (184114140).

Almost surely, 2^3155345220 is an apocalyptic number.

3155345220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3155345220 is an abundant number, since it is smaller than the sum of its proper divisors (5682133500).

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

3155345220 is a wasteful number, since it uses less digits than its factorization.

3155345220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964 (or 14962 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 3155345220 is about 56172.4596221316. The cubic root of 3155345220 is about 1466.7258983195.

The spelling of 3155345220 in words is "three billion, one hundred fifty-five million, three hundred forty-five thousand, two hundred twenty".