1156646331360 has 576 divisors, whose sum is σ = 4323320059968. Its totient is φ = 279865884672.

The previous prime is 1156646331359. The next prime is 1156646331377. The reversal of 1156646331360 is 631336466511.

1156646331360 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 6 + 4 + 633 + 1 + 3 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 969526924 + ... + 969528116.

It is an arithmetic number, because the mean of its divisors is an integer number (7505763993).

Almost surely, 2^{1156646331360} is an apocalyptic number.

1156646331360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156646331360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2161660029984).

1156646331360 is an abundant number, since it is smaller than the sum of its proper divisors (3166673728608).

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

1156646331360 is a wasteful number, since it uses less digits than its factorization.

1156646331360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 1156646331360 in words is "one trillion, one hundred fifty-six billion, six hundred forty-six million, three hundred thirty-one thousand, three hundred sixty".