20803315415424 has 32 divisors (see below), whose sum is σ = 55258806573240. Its totient is φ = 6934438471680.

The previous prime is 20803315415423. The next prime is 20803315415437. The reversal of 20803315415424 is 42451451330802.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20803315415423) 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, 27087649897 + ... + 27087650664.

Almost surely, 2^{20803315415424} is an apocalyptic number.

20803315415424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20803315415424 is an abundant number, since it is smaller than the sum of its proper divisors (34455491157816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20803315415424 is an equidigital number, since it uses as much as digits as its factorization.

20803315415424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54175300578 (or 54175300566 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 20803315415424 in words is "twenty trillion, eight hundred three billion, three hundred fifteen million, four hundred fifteen thousand, four hundred twenty-four".