20413438801 has 4 divisors (see below), whose sum is σ = 23329644352. Its totient is φ = 17497233252.

The previous prime is 20413438769. The next prime is 20413438817. The reversal of 20413438801 is 10883431402.

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 20413438801 - 2⁵ = 20413438769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20413438841) 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, 1458102765 + ... + 1458102778.

It is an arithmetic number, because the mean of its divisors is an integer number (5832411088).

Almost surely, 2^20413438801 is an apocalyptic number.

It is an amenable number.

20413438801 is a deficient number, since it is larger than the sum of its proper divisors (2916205551).

20413438801 is an equidigital number, since it uses as much as digits as its factorization.

20413438801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916205550.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20413438801 in words is "twenty billion, four hundred thirteen million, four hundred thirty-eight thousand, eight hundred one".