20953625513629 has 8 divisors (see below), whose sum is σ = 21059765566400. Its totient is φ = 20847493915776.

The previous prime is 20953625513599. The next prime is 20953625513647. The reversal of 20953625513629 is 92631552635902.

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 20953625513629 - 2⁴³ = 12157532491421 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 (20953625523629) 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, 2885242 + ... + 7087444.

It is an arithmetic number, because the mean of its divisors is an integer number (2632470695800).

Almost surely, 2^{20953625513629} is an apocalyptic number.

It is an amenable number.

20953625513629 is a deficient number, since it is larger than the sum of its proper divisors (106140052771).

20953625513629 is a wasteful number, since it uses less digits than its factorization.

20953625513629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227459.

The product of its (nonzero) digits is 26244000, while the sum is 58.

The spelling of 20953625513629 in words is "twenty trillion, nine hundred fifty-three billion, six hundred twenty-five million, five hundred thirteen thousand, six hundred twenty-nine".