220566655756151 has 4 divisors (see below), whose sum is σ = 224728290770472. Its totient is φ = 216405020741832.

The previous prime is 220566655756129. The next prime is 220566655756217. The reversal of 220566655756151 is 151657556665022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220566655756151 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 (220566655750151) 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, 2080817507081 + ... + 2080817507186.

It is an arithmetic number, because the mean of its divisors is an integer number (56182072692618).

Almost surely, 2^{220566655756151} is an apocalyptic number.

220566655756151 is a deficient number, since it is larger than the sum of its proper divisors (4161635014321).

220566655756151 is an equidigital number, since it uses as much as digits as its factorization.

220566655756151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161635014320.

The product of its (nonzero) digits is 113400000, while the sum is 62.

The spelling of 220566655756151 in words is "two hundred twenty trillion, five hundred sixty-six billion, six hundred fifty-five million, seven hundred fifty-six thousand, one hundred fifty-one".