1163565221046 has 16 divisors (see below), whose sum is σ = 2327328183024. Its totient is φ = 387822116864.

The previous prime is 1163565221041. The next prime is 1163565221047. The reversal of 1163565221046 is 6401225653611.

It is a junction number, because it is equal to n+sod(n) for n = 1163565220989 and 1163565221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163565221041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8162655 + ... + 8303978.

It is an arithmetic number, because the mean of its divisors is an integer number (145458011439).

Almost surely, 2^{1163565221046} is an apocalyptic number.

1163565221046 is an abundant number, since it is smaller than the sum of its proper divisors (1163762961978).

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

1163565221046 is a wasteful number, since it uses less digits than its factorization.

1163565221046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478415.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1163565221046 in words is "one trillion, one hundred sixty-three billion, five hundred sixty-five million, two hundred twenty-one thousand, forty-six".