1164080640 has 80 divisors (see below), whose sum is σ = 3721444848. Its totient is φ = 310419456.

The previous prime is 1164080639. The next prime is 1164080653. The reversal of 1164080640 is 460804611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1164080598 and 1164080607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68107 + ... + 83466.

Almost surely, 2^1164080640 is an apocalyptic number.

1164080640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164080640 is an abundant number, since it is smaller than the sum of its proper divisors (2557364208).

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

1164080640 is an equidigital number, since it uses as much as digits as its factorization.

1164080640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151599 (or 151583 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1164080640 is about 34118.6259981260. The cubic root of 1164080640 is about 1051.9482016066.

The spelling of 1164080640 in words is "one billion, one hundred sixty-four million, eighty thousand, six hundred forty".