25424126161 has 16 divisors (see below), whose sum is σ = 30833913600. Its totient is φ = 20464496640.

The previous prime is 25424126111. The next prime is 25424126197. The reversal of 25424126161 is 16162142452.

It is not a de Polignac number, because 25424126161 - 2¹⁹ = 25423601873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25424126111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184485 + ... + 291346.

It is an arithmetic number, because the mean of its divisors is an integer number (1927119600).

Almost surely, 2^25424126161 is an apocalyptic number.

It is an amenable number.

25424126161 is a deficient number, since it is larger than the sum of its proper divisors (5409787439).

25424126161 is a wasteful number, since it uses less digits than its factorization.

25424126161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476304.

The product of its digits is 23040, while the sum is 34.

The spelling of 25424126161 in words is "twenty-five billion, four hundred twenty-four million, one hundred twenty-six thousand, one hundred sixty-one".