20344650624253 has 16 divisors (see below), whose sum is σ = 21871464042240. Its totient is φ = 18863456256000.

The previous prime is 20344650624247. The next prime is 20344650624301. The reversal of 20344650624253 is 35242605644302.

It is a cyclic number.

It is not a de Polignac number, because 20344650624253 - 2²¹ = 20344648527101 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 (20344650624853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58694653 + ... + 59040253.

It is an arithmetic number, because the mean of its divisors is an integer number (1366966502640).

Almost surely, 2^{20344650624253} is an apocalyptic number.

It is an amenable number.

20344650624253 is a deficient number, since it is larger than the sum of its proper divisors (1526813417987).

20344650624253 is a wasteful number, since it uses less digits than its factorization.

20344650624253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411588.

The product of its (nonzero) digits is 4147200, while the sum is 46.

The spelling of 20344650624253 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, six hundred twenty-four thousand, two hundred fifty-three".