220255451461 has 2 divisors, whose sum is σ = 220255451462. Its totient is φ = 220255451460.

The previous prime is 220255451419. The next prime is 220255451467. The reversal of 220255451461 is 164154552022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168494651361 + 51760800100 = 410481^2 + 227510^2 .

It is a cyclic number.

It is not a de Polignac number, because 220255451461 - 2¹⁵ = 220255418693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220255451461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220255451467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110127725730 + 110127725731.

It is an arithmetic number, because the mean of its divisors is an integer number (110127725731).

Almost surely, 2^220255451461 is an apocalyptic number.

It is an amenable number.

220255451461 is a deficient number, since it is larger than the sum of its proper divisors (1).

220255451461 is an equidigital number, since it uses as much as digits as its factorization.

220255451461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 220255451461 in words is "two hundred twenty billion, two hundred fifty-five million, four hundred fifty-one thousand, four hundred sixty-one".