20251141510605 has 16 divisors (see below), whose sum is σ = 32401900056960. Its totient is φ = 10800584259008.

The previous prime is 20251141510597. The next prime is 20251141510673. The reversal of 20251141510605 is 50601514115202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20251141510605 - 2³ = 20251141510597 is a prime.

It is a super-2 number, since 2×20251141510605² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6717616 + ... + 9253574.

It is an arithmetic number, because the mean of its divisors is an integer number (2025118753560).

Almost surely, 2^{20251141510605} is an apocalyptic number.

It is an amenable number.

20251141510605 is a deficient number, since it is larger than the sum of its proper divisors (12150758546355).

20251141510605 is a wasteful number, since it uses less digits than its factorization.

20251141510605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068340.

The product of its (nonzero) digits is 12000, while the sum is 33.

Adding to 20251141510605 its reverse (50601514115202), we get a palindrome (70852655625807).

The spelling of 20251141510605 in words is "twenty trillion, two hundred fifty-one billion, one hundred forty-one million, five hundred ten thousand, six hundred five".