1078164088581 has 16 divisors (see below), whose sum is σ = 1438273823168. Its totient is φ = 718415308800.

The previous prime is 1078164088553. The next prime is 1078164088637. The reversal of 1078164088581 is 1858804618701.

It is not a de Polignac number, because 1078164088581 - 2¹¹ = 1078164086533 is a prime.

It is a super-2 number, since 2×1078164088581² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078164088511) 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, 70318086 + ... + 70333416.

It is an arithmetic number, because the mean of its divisors is an integer number (89892113948).

Almost surely, 2^{1078164088581} is an apocalyptic number.

It is an amenable number.

1078164088581 is a deficient number, since it is larger than the sum of its proper divisors (360109734587).

1078164088581 is a wasteful number, since it uses less digits than its factorization.

1078164088581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25572.

The product of its (nonzero) digits is 3440640, while the sum is 57.

The spelling of 1078164088581 in words is "one trillion, seventy-eight billion, one hundred sixty-four million, eighty-eight thousand, five hundred eighty-one".