1155235582079 has 8 divisors (see below), whose sum is σ = 1216049376000. Its totient is φ = 1094422980312.

The previous prime is 1155235582009. The next prime is 1155235582121. The reversal of 1155235582079 is 9702855325511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1155235582079 - 2⁸ = 1155235581823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155235582079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155235582009) 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, 2249432 + ... + 2714850.

It is an arithmetic number, because the mean of its divisors is an integer number (152006172000).

Almost surely, 2^{1155235582079} is an apocalyptic number.

1155235582079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1155235582079 is a deficient number, since it is larger than the sum of its proper divisors (60813793921).

1155235582079 is a wasteful number, since it uses less digits than its factorization.

1155235582079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596077.

The product of its (nonzero) digits is 3780000, while the sum is 53.

The spelling of 1155235582079 in words is "one trillion, one hundred fifty-five billion, two hundred thirty-five million, five hundred eighty-two thousand, seventy-nine".