20227023641 has 4 divisors (see below), whose sum is σ = 22065843984. Its totient is φ = 18388203300.

The previous prime is 20227023613. The next prime is 20227023671. The reversal of 20227023641 is 14632072202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20227023641 - 2¹⁸ = 20226761497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20227023601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919410155 + ... + 919410176.

It is an arithmetic number, because the mean of its divisors is an integer number (5516460996).

Almost surely, 2^20227023641 is an apocalyptic number.

It is an amenable number.

20227023641 is a deficient number, since it is larger than the sum of its proper divisors (1838820343).

20227023641 is a wasteful number, since it uses less digits than its factorization.

20227023641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838820342.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 20227023641 its reverse (14632072202), we get a palindrome (34859095843).

The spelling of 20227023641 in words is "twenty billion, two hundred twenty-seven million, twenty-three thousand, six hundred forty-one".