1163567801344 has 99 divisors (see below), whose sum is σ = 2519657354043. Its totient is φ = 536824184832.

The previous prime is 1163567801309. The next prime is 1163567801377. The reversal of 1163567801344 is 4431087653611.

It is a happy number.

The square root of 1163567801344 is 1078688.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 92591186944 + 1070976614400 = 304288^2 + 1034880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 448732912 + ... + 448735504.

Almost surely, 2^{1163567801344} is an apocalyptic number.

1163567801344 is the 1078688-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163567801344

1163567801344 is an abundant number, since it is smaller than the sum of its proper divisors (1356089552699).

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

1163567801344 is an frugal number, since it uses more digits than its factorization.

1163567801344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232 (or 2608 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

Multiplying 1163567801344 by its sum of digits (49), we get a square (57014822265856 = 7550816²).

The spelling of 1163567801344 in words is "one trillion, one hundred sixty-three billion, five hundred sixty-seven million, eight hundred one thousand, three hundred forty-four".