220654250550145 has 4 divisors (see below), whose sum is σ = 264785100660180. Its totient is φ = 176523400440112.

The previous prime is 220654250550143. The next prime is 220654250550197. The reversal of 220654250550145 is 541055052456022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 95717498395024 + 124936752155121 = 9783532^2 + 11177511^2 .

It is a cyclic number.

It is not a de Polignac number, because 220654250550145 - 2¹ = 220654250550143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220654250550095 and 220654250550104.

It is not an unprimeable number, because it can be changed into a prime (220654250550143) 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, 22065425055010 + ... + 22065425055019.

It is an arithmetic number, because the mean of its divisors is an integer number (66196275165045).

Almost surely, 2^{220654250550145} is an apocalyptic number.

It is an amenable number.

220654250550145 is a deficient number, since it is larger than the sum of its proper divisors (44130850110035).

220654250550145 is an equidigital number, since it uses as much as digits as its factorization.

220654250550145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44130850110034.

The product of its (nonzero) digits is 2400000, while the sum is 46.

The spelling of 220654250550145 in words is "two hundred twenty trillion, six hundred fifty-four billion, two hundred fifty million, five hundred fifty thousand, one hundred forty-five".