25718006161 has 8 divisors (see below), whose sum is σ = 25779001248. Its totient is φ = 25657068000.

The previous prime is 25718006143. The next prime is 25718006173. The reversal of 25718006161 is 16160081752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25718006161 - 2⁷ = 25718006033 is a prime.

It is a super-2 number, since 2×25718006161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25718006161.

It is not an unprimeable number, because it can be changed into a prime (25718006101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969606 + ... + 995776.

It is an arithmetic number, because the mean of its divisors is an integer number (3222375156).

Almost surely, 2^25718006161 is an apocalyptic number.

It is an amenable number.

25718006161 is a deficient number, since it is larger than the sum of its proper divisors (60995087).

25718006161 is a wasteful number, since it uses less digits than its factorization.

25718006161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28463.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 25718006161 in words is "twenty-five billion, seven hundred eighteen million, six thousand, one hundred sixty-one".