1154565864116 has 48 divisors (see below), whose sum is σ = 2390612313600. Its totient is φ = 477380322048.

The previous prime is 1154565864079. The next prime is 1154565864143. The reversal of 1154565864116 is 6114685654511.

It is a super-2 number, since 2×1154565864116² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495125 + ... + 1598211.

It is an arithmetic number, because the mean of its divisors is an integer number (49804423200).

Almost surely, 2^{1154565864116} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1154565864116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195306156800).

1154565864116 is an abundant number, since it is smaller than the sum of its proper divisors (1236046449484).

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

1154565864116 is a wasteful number, since it uses less digits than its factorization.

1154565864116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104416 (or 1104414 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 53.

The spelling of 1154565864116 in words is "one trillion, one hundred fifty-four billion, five hundred sixty-five million, eight hundred sixty-four thousand, one hundred sixteen".