220641562 has 4 divisors (see below), whose sum is σ = 330962346. Its totient is φ = 110320780.

The previous prime is 220641559. The next prime is 220641571. The reversal of 220641562 is 265146022.

220641562 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 184172041 + 36469521 = 13571^2 + 6039^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220641562.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55160389 + ... + 55160392.

Almost surely, 2^220641562 is an apocalyptic number.

220641562 is a deficient number, since it is larger than the sum of its proper divisors (110320784).

220641562 is a wasteful number, since it uses less digits than its factorization.

220641562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110320783.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 220641562 is about 14854.0082805955. The cubic root of 220641562 is about 604.2673205989.

Adding to 220641562 its reverse (265146022), we get a palindrome (485787584).

The spelling of 220641562 in words is "two hundred twenty million, six hundred forty-one thousand, five hundred sixty-two".