20125601171255 has 8 divisors (see below), whose sum is σ = 24236059645392. Its totient is φ = 16043588777088.

The previous prime is 20125601171237. The next prime is 20125601171303. The reversal of 20125601171255 is 55217110652102.

It is a happy number.

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 20125601171255 - 2²⁶ = 20125534062391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7111518434 + ... + 7111521263.

It is an arithmetic number, because the mean of its divisors is an integer number (3029507455674).

Almost surely, 2^{20125601171255} is an apocalyptic number.

20125601171255 is a deficient number, since it is larger than the sum of its proper divisors (4110458474137).

20125601171255 is a wasteful number, since it uses less digits than its factorization.

20125601171255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14223039985.

The product of its (nonzero) digits is 42000, while the sum is 38.

The spelling of 20125601171255 in words is "twenty trillion, one hundred twenty-five billion, six hundred one million, one hundred seventy-one thousand, two hundred fifty-five".