1162880661 has 8 divisors (see below), whose sum is σ = 1554300160. Its totient is φ = 773357472.

The previous prime is 1162880651. The next prime is 1162880683. The reversal of 1162880661 is 1660882611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1162880661 - 2¹⁵ = 1162847893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162880651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472645 + ... + 475098.

It is an arithmetic number, because the mean of its divisors is an integer number (194287520).

Almost surely, 2^1162880661 is an apocalyptic number.

It is an amenable number.

1162880661 is a deficient number, since it is larger than the sum of its proper divisors (391419499).

1162880661 is an equidigital number, since it uses as much as digits as its factorization.

1162880661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948155.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1162880661 is about 34101.0360693044. The cubic root of 1162880661 is about 1051.5866144725.

The spelling of 1162880661 in words is "one billion, one hundred sixty-two million, eight hundred eighty thousand, six hundred sixty-one".