20125526661623 has 8 divisors (see below), whose sum is σ = 20819590294800. Its totient is φ = 19431468358848.

The previous prime is 20125526661607. The next prime is 20125526661649. The reversal of 20125526661623 is 32616662552102.

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 20125526661623 - 2⁴ = 20125526661607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125526661673) 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, 7295840 + ... + 9668522.

It is an arithmetic number, because the mean of its divisors is an integer number (2602448786850).

Almost surely, 2^{20125526661623} is an apocalyptic number.

20125526661623 is a deficient number, since it is larger than the sum of its proper divisors (694063633177).

20125526661623 is a wasteful number, since it uses less digits than its factorization.

20125526661623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665201.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 20125526661623 in words is "twenty trillion, one hundred twenty-five billion, five hundred twenty-six million, six hundred sixty-one thousand, six hundred twenty-three".