20413346303645 has 16 divisors (see below), whose sum is σ = 25945911009648. Its totient is φ = 15364743290880.

The previous prime is 20413346303633. The next prime is 20413346303681. The reversal of 20413346303645 is 54630364331402.

It can be written as a sum of positive squares in 8 ways, for example, as 13472012761 + 20399874290884 = 116069^2 + 4516622^2 .

It is not a de Polignac number, because 20413346303645 - 2²⁸ = 20413077868189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20413346303596 and 20413346303605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41203016 + ... + 41695505.

It is an arithmetic number, because the mean of its divisors is an integer number (1621619438103).

Almost surely, 2^{20413346303645} is an apocalyptic number.

It is an amenable number.

20413346303645 is a deficient number, since it is larger than the sum of its proper divisors (5532564706003).

20413346303645 is a wasteful number, since it uses less digits than its factorization.

20413346303645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82901440.

The product of its (nonzero) digits is 1866240, while the sum is 44.

The spelling of 20413346303645 in words is "twenty trillion, four hundred thirteen billion, three hundred forty-six million, three hundred three thousand, six hundred forty-five".