1163984155947 has 24 divisors (see below), whose sum is σ = 1682999665776. Its totient is φ = 775210093056.

The previous prime is 1163984155931. The next prime is 1163984155979. The reversal of 1163984155947 is 7495514893611.

1163984155947 is a `hidden beast` number, since 1 + 1 + 6 + 39 + 8 + 4 + 1 + 5 + 594 + 7 = 666.

It is not a de Polignac number, because 1163984155947 - 2⁴ = 1163984155931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1163984155447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66025348 + ... + 66042974.

It is an arithmetic number, because the mean of its divisors is an integer number (70124986074).

Almost surely, 2^{1163984155947} is an apocalyptic number.

1163984155947 is a deficient number, since it is larger than the sum of its proper divisors (519015509829).

1163984155947 is a wasteful number, since it uses less digits than its factorization.

1163984155947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24587 (or 24584 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 1163984155947 in words is "one trillion, one hundred sixty-three billion, nine hundred eighty-four million, one hundred fifty-five thousand, nine hundred forty-seven".