220777157 has 8 divisors (see below), whose sum is σ = 221906496. Its totient is φ = 219651552.

The previous prime is 220777153. The next prime is 220777163. The reversal of 220777157 is 751777022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220777157 - 2² = 220777153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220777157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220777153) 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 7 ways as a sum of consecutive naturals, for example, 267848 + ... + 268670.

It is an arithmetic number, because the mean of its divisors is an integer number (27738312).

Almost surely, 2^220777157 is an apocalyptic number.

It is an amenable number.

220777157 is a deficient number, since it is larger than the sum of its proper divisors (1129339).

220777157 is an equidigital number, since it uses as much as digits as its factorization.

220777157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 220777157 is about 14858.5718358125. The cubic root of 220777157 is about 604.3910791629.

The spelling of 220777157 in words is "two hundred twenty million, seven hundred seventy-seven thousand, one hundred fifty-seven".