2801580161281 has 16 divisors (see below), whose sum is σ = 3104595744768. Its totient is φ = 2506741224400.

The previous prime is 2801580161257. The next prime is 2801580161287. The reversal of 2801580161281 is 1821610851082.

It is a cyclic number.

It is not a de Polignac number, because 2801580161281 - 2⁵ = 2801580161249 is a prime.

It is a super-2 number, since 2×2801580161281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801580161287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2597065 + ... + 3513958.

It is an arithmetic number, because the mean of its divisors is an integer number (194037234048).

Almost surely, 2^{2801580161281} is an apocalyptic number.

It is an amenable number.

2801580161281 is a deficient number, since it is larger than the sum of its proper divisors (303015583487).

2801580161281 is a wasteful number, since it uses less digits than its factorization.

2801580161281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111692.

The product of its (nonzero) digits is 61440, while the sum is 43.

It can be divided in two parts, 28015801 and 61281, that added together give a palindrome (28077082).

The spelling of 2801580161281 in words is "two trillion, eight hundred one billion, five hundred eighty million, one hundred sixty-one thousand, two hundred eighty-one".