20800742533116 has 144 divisors (see below), whose sum is σ = 60502109278464. Its totient is φ = 5445866469888.

The previous prime is 20800742533079. The next prime is 20800742533117. The reversal of 20800742533116 is 61133524700802.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20800742533117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3402790 + ... + 7292493.

It is an arithmetic number, because the mean of its divisors is an integer number (420153536656).

Almost surely, 2^{20800742533116} is an apocalyptic number.

20800742533116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20800742533116 is an abundant number, since it is smaller than the sum of its proper divisors (39701366745348).

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

20800742533116 is a wasteful number, since it uses less digits than its factorization.

20800742533116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695460 (or 10695445 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20800742533116 in words is "twenty trillion, eight hundred billion, seven hundred forty-two million, five hundred thirty-three thousand, one hundred sixteen".