20896335387746 has 64 divisors (see below), whose sum is σ = 39524513656320. Its totient is φ = 8066226309120.

The previous prime is 20896335387731. The next prime is 20896335387751. The reversal of 20896335387746 is 64778353369802.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a self number, because there is not a number n which added to its sum of digits gives 20896335387746.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7082201 + ... + 9589068.

It is an arithmetic number, because the mean of its divisors is an integer number (617570525880).

Almost surely, 2^{20896335387746} is an apocalyptic number.

20896335387746 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20896335387746 is a deficient number, since it is larger than the sum of its proper divisors (18628178268574).

20896335387746 is a wasteful number, since it uses less digits than its factorization.

20896335387746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671459.

The product of its (nonzero) digits is 1097349120, while the sum is 71.

The spelling of 20896335387746 in words is "twenty trillion, eight hundred ninety-six billion, three hundred thirty-five million, three hundred eighty-seven thousand, seven hundred forty-six".