20413515003641 has 4 divisors (see below), whose sum is σ = 20413728221952. Its totient is φ = 20413301785332.

The previous prime is 20413515003631. The next prime is 20413515003643. The reversal of 20413515003641 is 14630051531402.

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 a de Polignac number, because none of the positive numbers 2^k-20413515003641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20413515003643) 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, 106465481 + ... + 106657046.

It is an arithmetic number, because the mean of its divisors is an integer number (5103432055488).

Almost surely, 2^{20413515003641} is an apocalyptic number.

It is an amenable number.

20413515003641 is a deficient number, since it is larger than the sum of its proper divisors (213218311).

20413515003641 is an equidigital number, since it uses as much as digits as its factorization.

20413515003641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213218310.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20413515003641 in words is "twenty trillion, four hundred thirteen billion, five hundred fifteen million, three thousand, six hundred forty-one".