1155901481479 has 4 divisors (see below), whose sum is σ = 1155985371720. Its totient is φ = 1155817591240.

The previous prime is 1155901481431. The next prime is 1155901481491. The reversal of 1155901481479 is 9741841095511.

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

It is a cyclic number.

It is not a de Polignac number, because 1155901481479 - 2⁷ = 1155901481351 is a prime.

It is a super-2 number, since 2×1155901481479² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155971481479) 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, 41924449 + ... + 41952010.

It is an arithmetic number, because the mean of its divisors is an integer number (288996342930).

Almost surely, 2^{1155901481479} is an apocalyptic number.

1155901481479 is a deficient number, since it is larger than the sum of its proper divisors (83890241).

1155901481479 is an equidigital number, since it uses as much as digits as its factorization.

1155901481479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83890240.

The product of its (nonzero) digits is 1814400, while the sum is 55.

The spelling of 1155901481479 in words is "one trillion, one hundred fifty-five billion, nine hundred one million, four hundred eighty-one thousand, four hundred seventy-nine".