2420251111161 has 32 divisors (see below), whose sum is σ = 3885964091520. Its totient is φ = 1479898734912.

The previous prime is 2420251111129. The next prime is 2420251111177. The reversal of 2420251111161 is 1611111520242.

2420251111161 is a `hidden beast` number, since 242 + 0 + 251 + 1 + 11 + 161 = 666.

2420251111161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2420251111161 - 2⁵ = 2420251111129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2420251111181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21904455 + ... + 22014668.

It is an arithmetic number, because the mean of its divisors is an integer number (121436377860).

Almost surely, 2^{2420251111161} is an apocalyptic number.

It is an amenable number.

2420251111161 is a deficient number, since it is larger than the sum of its proper divisors (1465712980359).

2420251111161 is a wasteful number, since it uses less digits than its factorization.

2420251111161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43919302 (or 43919296 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The spelling of 2420251111161 in words is "two trillion, four hundred twenty billion, two hundred fifty-one million, one hundred eleven thousand, one hundred sixty-one".