2220157477 has 4 divisors (see below), whose sum is σ = 2237105376. Its totient is φ = 2203209580.

The previous prime is 2220157469. The next prime is 2220157507. The reversal of 2220157477 is 7747510222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220157477 - 2³ = 2220157469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220157427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8473753 + ... + 8474014.

It is an arithmetic number, because the mean of its divisors is an integer number (559276344).

Almost surely, 2^2220157477 is an apocalyptic number.

It is an amenable number.

2220157477 is a deficient number, since it is larger than the sum of its proper divisors (16947899).

2220157477 is a wasteful number, since it uses less digits than its factorization.

2220157477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16947898.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 2220157477 is about 47118.5470595179. The cubic root of 2220157477 is about 1304.5515949389.

Adding to 2220157477 its reverse (7747510222), we get a palindrome (9967667699).

The spelling of 2220157477 in words is "two billion, two hundred twenty million, one hundred fifty-seven thousand, four hundred seventy-seven".