1089966801 has 32 divisors (see below), whose sum is σ = 1850462208. Its totient is φ = 554163840.

The previous prime is 1089966793. The next prime is 1089966811. The reversal of 1089966801 is 1086699801.

It is not a de Polignac number, because 1089966801 - 2³ = 1089966793 is a prime.

1089966801 is a strobogrammatic number because it is the same when read upside-down.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1089966811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39340 + ... + 61053.

It is an arithmetic number, because the mean of its divisors is an integer number (57826944).

Almost surely, 2^1089966801 is an apocalyptic number.

1089966801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1089966801 is a deficient number, since it is larger than the sum of its proper divisors (760495407).

1089966801 is a wasteful number, since it uses less digits than its factorization.

1089966801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100461.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 1089966801 is about 33014.6452502522. The cubic root of 1089966801 is about 1029.1320179942.

The spelling of 1089966801 in words is "one billion, eighty-nine million, nine hundred sixty-six thousand, eight hundred one".