20484396599623 has 4 divisors (see below), whose sum is σ = 22346614472328. Its totient is φ = 18622178726920.

The previous prime is 20484396599621. The next prime is 20484396599659. The reversal of 20484396599623 is 32699569348402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20484396599623 - 2¹ = 20484396599621 is a prime.

It is a super-2 number, since 2×20484396599623² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20484396599621) 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, 931108936336 + ... + 931108936357.

It is an arithmetic number, because the mean of its divisors is an integer number (5586653618082).

Almost surely, 2^{20484396599623} is an apocalyptic number.

20484396599623 is a deficient number, since it is larger than the sum of its proper divisors (1862217872705).

20484396599623 is a wasteful number, since it uses less digits than its factorization.

20484396599623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862217872704.

The product of its (nonzero) digits is 604661760, while the sum is 70.

The spelling of 20484396599623 in words is "twenty trillion, four hundred eighty-four billion, three hundred ninety-six million, five hundred ninety-nine thousand, six hundred twenty-three".