20413515565426 has 8 divisors (see below), whose sum is σ = 30620292833520. Its totient is φ = 10206751287588.

The previous prime is 20413515565423. The next prime is 20413515565433. The reversal of 20413515565426 is 62456551531402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20413515565426² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20413515565426.

It is not an unprimeable number, because it can be changed into a prime (20413515565423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3413805 + ... + 7244383.

It is an arithmetic number, because the mean of its divisors is an integer number (3827536604190).

Almost surely, 2^{20413515565426} is an apocalyptic number.

20413515565426 is a deficient number, since it is larger than the sum of its proper divisors (10206777268094).

20413515565426 is a wasteful number, since it uses less digits than its factorization.

20413515565426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495128.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 20413515565426 in words is "twenty trillion, four hundred thirteen billion, five hundred fifteen million, five hundred sixty-five thousand, four hundred twenty-six".