220660703 has 4 divisors (see below), whose sum is σ = 220987320. Its totient is φ = 220334088.

The previous prime is 220660691. The next prime is 220660709. The reversal of 220660703 is 307066022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 307066022 = 2 ⋅153533011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220660703 is a prime.

It is a super-2 number, since 2×220660703² = 97382291696908418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220660709) 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, 162293 + ... + 163646.

It is an arithmetic number, because the mean of its divisors is an integer number (55246830).

Almost surely, 2^220660703 is an apocalyptic number.

220660703 is a deficient number, since it is larger than the sum of its proper divisors (326617).

220660703 is an equidigital number, since it uses as much as digits as its factorization.

220660703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326616.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 220660703 is about 14854.6525708278. The cubic root of 220660703 is about 604.2847938048.

The spelling of 220660703 in words is "two hundred twenty million, six hundred sixty thousand, seven hundred three".