220672711 has 4 divisors (see below), whose sum is σ = 252197392. Its totient is φ = 189148032.

The previous prime is 220672703. The next prime is 220672717. The reversal of 220672711 is 117276022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220672711 - 2³ = 220672703 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 220672711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220672717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15762330 + ... + 15762343.

It is an arithmetic number, because the mean of its divisors is an integer number (63049348).

Almost surely, 2^220672711 is an apocalyptic number.

220672711 is a deficient number, since it is larger than the sum of its proper divisors (31524681).

220672711 is an equidigital number, since it uses as much as digits as its factorization.

220672711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31524680.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 220672711 is about 14855.0567484611. The cubic root of 220672711 is about 604.2957550077.

The spelling of 220672711 in words is "two hundred twenty million, six hundred seventy-two thousand, seven hundred eleven".