1163221105379 has 64 divisors (see below), whose sum is σ = 1271570227200. Its totient is φ = 1060807104000.

The previous prime is 1163221105349. The next prime is 1163221105381. The reversal of 1163221105379 is 9735011223611.

It is a cyclic number.

It is not a de Polignac number, because 1163221105379 - 2¹² = 1163221101283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1163221105339) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3740260634 + ... + 3740260944.

It is an arithmetic number, because the mean of its divisors is an integer number (19868284800).

Almost surely, 2^{1163221105379} is an apocalyptic number.

1163221105379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1163221105379 is a deficient number, since it is larger than the sum of its proper divisors (108349121821).

1163221105379 is a wasteful number, since it uses less digits than its factorization.

1163221105379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 1163221105379 in words is "one trillion, one hundred sixty-three billion, two hundred twenty-one million, one hundred five thousand, three hundred seventy-nine".