1156065662464 has 80 divisors (see below), whose sum is σ = 2333422080000. Its totient is φ = 572160927744.

The previous prime is 1156065662443. The next prime is 1156065662471. The reversal of 1156065662464 is 4642665606511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28525287 + ... + 28565785.

It is an arithmetic number, because the mean of its divisors is an integer number (29167776000).

Almost surely, 2^{1156065662464} 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 1156065662464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166711040000).

1156065662464 is an abundant number, since it is smaller than the sum of its proper divisors (1177356417536).

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

1156065662464 is an equidigital number, since it uses as much as digits as its factorization.

1156065662464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41083 (or 41067 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 1156065662464 in words is "one trillion, one hundred fifty-six billion, sixty-five million, six hundred sixty-two thousand, four hundred sixty-four".