20252266621 has 8 divisors (see below), whose sum is σ = 20402472384. Its totient is φ = 20102272800.

The previous prime is 20252266577. The next prime is 20252266681. The reversal of 20252266621 is 12666225202.

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 20252266621 - 2⁹ = 20252266109 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 (20252266681) 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, 141465 + ... + 246001.

It is an arithmetic number, because the mean of its divisors is an integer number (2550309048).

Almost surely, 2^20252266621 is an apocalyptic number.

It is an amenable number.

20252266621 is a deficient number, since it is larger than the sum of its proper divisors (150205763).

20252266621 is a wasteful number, since it uses less digits than its factorization.

20252266621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105971.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20252266621 in words is "twenty billion, two hundred fifty-two million, two hundred sixty-six thousand, six hundred twenty-one".