1113805651959 has 288 divisors, whose sum is σ = 2357663293440. Its totient is φ = 496274688000.

The previous prime is 1113805651921. The next prime is 1113805651969. The reversal of 1113805651959 is 9591565083111.

1113805651959 is a `hidden beast` number, since 1 + 1 + 13 + 8 + 0 + 565 + 19 + 59 = 666.

It is not a de Polignac number, because 1113805651959 - 2⁸ = 1113805651703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113805651969) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 84687034 + ... + 84700184.

It is an arithmetic number, because the mean of its divisors is an integer number (8186330880).

Almost surely, 2^{1113805651959} is an apocalyptic number.

1113805651959 is an abundant number, since it is smaller than the sum of its proper divisors (1243857641481).

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

1113805651959 is a wasteful number, since it uses less digits than its factorization.

1113805651959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13291 (or 13281 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 54.

The spelling of 1113805651959 in words is "one trillion, one hundred thirteen billion, eight hundred five million, six hundred fifty-one thousand, nine hundred fifty-nine".