20413514144645 has 64 divisors (see below), whose sum is σ = 26456063422464. Its totient is φ = 15066445132800.

The previous prime is 20413514144633. The next prime is 20413514144651. The reversal of 20413514144645 is 54644141531402.

It is not a de Polignac number, because 20413514144645 - 2¹⁰ = 20413514143621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20413514144596 and 20413514144605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 374100134 + ... + 374154696.

It is an arithmetic number, because the mean of its divisors is an integer number (413375990976).

Almost surely, 2^{20413514144645} is an apocalyptic number.

It is an amenable number.

20413514144645 is a deficient number, since it is larger than the sum of its proper divisors (6042549277819).

20413514144645 is a wasteful number, since it uses less digits than its factorization.

20413514144645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55122.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 20413514144645 in words is "twenty trillion, four hundred thirteen billion, five hundred fourteen million, one hundred forty-four thousand, six hundred forty-five".