220801761761541 has 4 divisors (see below), whose sum is σ = 294402349015392. Its totient is φ = 147201174507692.

The previous prime is 220801761761519. The next prime is 220801761761543. The reversal of 220801761761541 is 145167167108022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220801761761541 - 2¹⁷ = 220801761630469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220801761761543) 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, 36800293626921 + ... + 36800293626926.

It is an arithmetic number, because the mean of its divisors is an integer number (73600587253848).

Almost surely, 2^{220801761761541} is an apocalyptic number.

It is an amenable number.

220801761761541 is a deficient number, since it is larger than the sum of its proper divisors (73600587253851).

220801761761541 is an equidigital number, since it uses as much as digits as its factorization.

220801761761541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73600587253850.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 220801761761541 in words is "two hundred twenty trillion, eight hundred one billion, seven hundred sixty-one million, seven hundred sixty-one thousand, five hundred forty-one".