1151566559988 has 96 divisors (see below), whose sum is σ = 2975532924672. Its totient is φ = 344371123200.

The previous prime is 1151566559929. The next prime is 1151566560007. The reversal of 1151566559988 is 8899556651511.

It is a super-2 number, since 2×1151566559988² (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 31 ways as a sum of consecutive naturals, for example, 1339858 + ... + 2024438.

It is an arithmetic number, because the mean of its divisors is an integer number (30995134632).

Almost surely, 2^{1151566559988} 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 1151566559988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487766462336).

1151566559988 is an abundant number, since it is smaller than the sum of its proper divisors (1823966364684).

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

1151566559988 is a wasteful number, since it uses less digits than its factorization.

1151566559988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684905 (or 684903 counting only the distinct ones).

The product of its digits is 116640000, while the sum is 69.

The spelling of 1151566559988 in words is "one trillion, one hundred fifty-one billion, five hundred sixty-six million, five hundred fifty-nine thousand, nine hundred eighty-eight".