1155111417834 has 48 divisors (see below), whose sum is σ = 2649741788736. Its totient is φ = 334814898880.

The previous prime is 1155111417797. The next prime is 1155111417853. The reversal of 1155111417834 is 4387141115511.

It is a super-2 number, since 2×1155111417834² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34571619 + ... + 34605014.

It is an arithmetic number, because the mean of its divisors is an integer number (55202953932).

Almost surely, 2^{1155111417834} is an apocalyptic number.

1155111417834 is an abundant number, since it is smaller than the sum of its proper divisors (1494630370902).

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

1155111417834 is a wasteful number, since it uses less digits than its factorization.

1155111417834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69176683 (or 69176672 counting only the distinct ones).

The product of its digits is 67200, while the sum is 42.

The spelling of 1155111417834 in words is "one trillion, one hundred fifty-five billion, one hundred eleven million, four hundred seventeen thousand, eight hundred thirty-four".