20354632125645 has 64 divisors (see below), whose sum is σ = 33913376421120. Its totient is φ = 10416153600000.

The previous prime is 20354632125601. The next prime is 20354632125689. The reversal of 20354632125645 is 54652123645302.

It is an interprime number because it is at equal distance from previous prime (20354632125601) and next prime (20354632125689).

It is not a de Polignac number, because 20354632125645 - 2¹⁶ = 20354632060109 is a prime.

It is a super-3 number, since 3×20354632125645³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20354632125594 and 20354632125603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13346461 + ... + 14793149.

It is an arithmetic number, because the mean of its divisors is an integer number (529896506580).

Almost surely, 2^{20354632125645} is an apocalyptic number.

It is an amenable number.

20354632125645 is a deficient number, since it is larger than the sum of its proper divisors (13558744295475).

20354632125645 is a wasteful number, since it uses less digits than its factorization.

20354632125645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447086.

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 20354632125645 in words is "twenty trillion, three hundred fifty-four billion, six hundred thirty-two million, one hundred twenty-five thousand, six hundred forty-five".