2801656540320 has 192 divisors, whose sum is σ = 9629780017536. Its totient is φ = 679029370880.

The previous prime is 2801656540247. The next prime is 2801656540363. The reversal of 2801656540320 is 230456561082.

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, 23155822 + ... + 23276498.

It is an arithmetic number, because the mean of its divisors is an integer number (50155104258).

Almost surely, 2^{2801656540320} is an apocalyptic number.

2801656540320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2801656540320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4814890008768).

2801656540320 is an abundant number, since it is smaller than the sum of its proper divisors (6828123477216).

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

2801656540320 is a wasteful number, since it uses less digits than its factorization.

2801656540320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125103 (or 125095 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 2801656540320 in words is "two trillion, eight hundred one billion, six hundred fifty-six million, five hundred forty thousand, three hundred twenty".