2220155774 has 16 divisors (see below), whose sum is σ = 3374266896. Its totient is φ = 1095494400.

The previous prime is 2220155767. The next prime is 2220155797. The reversal of 2220155774 is 4775510222.

2220155774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 24014 + ... + 70830.

It is an arithmetic number, because the mean of its divisors is an integer number (210891681).

Almost surely, 2^2220155774 is an apocalyptic number.

2220155774 is a deficient number, since it is larger than the sum of its proper divisors (1154111122).

2220155774 is a wasteful number, since it uses less digits than its factorization.

2220155774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47131.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 2220155774 is about 47118.5289880743. The cubic root of 2220155774 is about 1304.5512613812.

Adding to 2220155774 its reverse (4775510222), we get a palindrome (6995665996).

The spelling of 2220155774 in words is "two billion, two hundred twenty million, one hundred fifty-five thousand, seven hundred seventy-four".