20354655206125 has 16 divisors (see below), whose sum is σ = 25596522768960. Its totient is φ = 16159420914000.

The previous prime is 20354655206089. The next prime is 20354655206141. The reversal of 20354655206125 is 52160255645302.

It is not a de Polignac number, because 20354655206125 - 2²³ = 20354646817517 is a prime.

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, 621499815 + ... + 621532564.

It is an arithmetic number, because the mean of its divisors is an integer number (1599782673060).

Almost surely, 2^{20354655206125} is an apocalyptic number.

20354655206125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20354655206125 is a deficient number, since it is larger than the sum of its proper divisors (5241867562835).

20354655206125 is a wasteful number, since it uses less digits than its factorization.

20354655206125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243032525 (or 1243032515 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 20354655206125 in words is "twenty trillion, three hundred fifty-four billion, six hundred fifty-five million, two hundred six thousand, one hundred twenty-five".