25165635630623 has 16 divisors (see below), whose sum is σ = 26222794740000. Its totient is φ = 24121284173952.

The previous prime is 25165635630601. The next prime is 25165635630643. The reversal of 25165635630623 is 32603653656152.

It is not a de Polignac number, because 25165635630623 - 2¹⁶ = 25165635565087 is a prime.

It is a super-4 number, since 4×25165635630623⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25165635630643) 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, 6102536 + ... + 9358002.

It is an arithmetic number, because the mean of its divisors is an integer number (1638924671250).

Almost surely, 2^{25165635630623} is an apocalyptic number.

25165635630623 is a deficient number, since it is larger than the sum of its proper divisors (1057159109377).

25165635630623 is a wasteful number, since it uses less digits than its factorization.

25165635630623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257434.

The product of its (nonzero) digits is 17496000, while the sum is 53.

The spelling of 25165635630623 in words is "twenty-five trillion, one hundred sixty-five billion, six hundred thirty-five million, six hundred thirty thousand, six hundred twenty-three".