25016161263 has 8 divisors (see below), whose sum is σ = 33427870128. Its totient is φ = 16640946624.

The previous prime is 25016161243. The next prime is 25016161271. The reversal of 25016161263 is 36216161052.

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

It is not a de Polignac number, because 25016161263 - 2¹⁷ = 25016030191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25016161223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9121956 + ... + 9124697.

It is an arithmetic number, because the mean of its divisors is an integer number (4178483766).

Almost surely, 2^25016161263 is an apocalyptic number.

25016161263 is a deficient number, since it is larger than the sum of its proper divisors (8411708865).

25016161263 is a wasteful number, since it uses less digits than its factorization.

25016161263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18247113.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 25016161263 in words is "twenty-five billion, sixteen million, one hundred sixty-one thousand, two hundred sixty-three".