25146116669 has 2 divisors, whose sum is σ = 25146116670. Its totient is φ = 25146116668.

The previous prime is 25146116641. The next prime is 25146116701. The reversal of 25146116669 is 96661164152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23481884644 + 1664232025 = 153238^2 + 40795^2 .

It is a cyclic number.

It is not a de Polignac number, because 25146116669 - 2¹² = 25146112573 is a prime.

It is a super-2 number, since 2×25146116669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25146116629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12573058334 + 12573058335.

It is an arithmetic number, because the mean of its divisors is an integer number (12573058335).

Almost surely, 2^25146116669 is an apocalyptic number.

It is an amenable number.

25146116669 is a deficient number, since it is larger than the sum of its proper divisors (1).

25146116669 is an equidigital number, since it uses as much as digits as its factorization.

25146116669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The spelling of 25146116669 in words is "twenty-five billion, one hundred forty-six million, one hundred sixteen thousand, six hundred sixty-nine".