1163158952638 has 4 divisors (see below), whose sum is σ = 1744738428960. Its totient is φ = 581579476318.

The previous prime is 1163158952563. The next prime is 1163158952677. The reversal of 1163158952638 is 8362598513611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290789738158 + ... + 290789738161.

It is an arithmetic number, because the mean of its divisors is an integer number (436184607240).

Almost surely, 2^{1163158952638} is an apocalyptic number.

1163158952638 is a deficient number, since it is larger than the sum of its proper divisors (581579476322).

1163158952638 is an equidigital number, since it uses as much as digits as its factorization.

1163158952638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581579476321.

The product of its digits is 9331200, while the sum is 58.

The spelling of 1163158952638 in words is "one trillion, one hundred sixty-three billion, one hundred fifty-eight million, nine hundred fifty-two thousand, six hundred thirty-eight".