1163580404279 has 4 divisors (see below), whose sum is σ = 1165309350576. Its totient is φ = 1161851457984.

The previous prime is 1163580404267. The next prime is 1163580404291. The reversal of 1163580404279 is 9724040853611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1163580404267) and next prime (1163580404291).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1163580404279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163580404209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864472139 + ... + 864473484.

It is an arithmetic number, because the mean of its divisors is an integer number (291327337644).

It is a 1-persistent number, because it is pandigital, but 2⋅1163580404279 = 2327160808558 is not.

Almost surely, 2^{1163580404279} is an apocalyptic number.

1163580404279 is a deficient number, since it is larger than the sum of its proper divisors (1728946297).

1163580404279 is an equidigital number, since it uses as much as digits as its factorization.

1163580404279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728946296.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 1163580404279 in words is "one trillion, one hundred sixty-three billion, five hundred eighty million, four hundred four thousand, two hundred seventy-nine".