20064215841 has 4 divisors (see below), whose sum is σ = 26752287792. Its totient is φ = 13376143892.

The previous prime is 20064215837. The next prime is 20064215863. The reversal of 20064215841 is 14851246002.

It is a happy number.

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 20064215841 - 2² = 20064215837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20064215641) 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, 3344035971 + ... + 3344035976.

It is an arithmetic number, because the mean of its divisors is an integer number (6688071948).

Almost surely, 2^20064215841 is an apocalyptic number.

It is an amenable number.

20064215841 is a deficient number, since it is larger than the sum of its proper divisors (6688071951).

20064215841 is an equidigital number, since it uses as much as digits as its factorization.

20064215841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6688071950.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 20064215841 in words is "twenty billion, sixty-four million, two hundred fifteen thousand, eight hundred forty-one".