220949651727 has 12 divisors (see below), whose sum is σ = 364742282320. Its totient is φ = 126256943808.

The previous prime is 220949651701. The next prime is 220949651743. The reversal of 220949651727 is 727156949022.

It is not a de Polignac number, because 220949651727 - 2¹⁵ = 220949618959 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 (220949651227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1753568602 + ... + 1753568727.

Almost surely, 2^220949651727 is an apocalyptic number.

220949651727 is a deficient number, since it is larger than the sum of its proper divisors (143792630593).

220949651727 is a wasteful number, since it uses less digits than its factorization.

220949651727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507137342 (or 3507137339 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 220949651727 in words is "two hundred twenty billion, nine hundred forty-nine million, six hundred fifty-one thousand, seven hundred twenty-seven".