1163633661100 has 72 divisors (see below), whose sum is σ = 2658569840640. Its totient is φ = 440858767680.

The previous prime is 1163633661089. The next prime is 1163633661107. The reversal of 1163633661100 is 11663363611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163633661100.

It is not an unprimeable number, because it can be changed into a prime (1163633661107) 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, 8870589 + ... + 9000811.

It is an arithmetic number, because the mean of its divisors is an integer number (36924581120).

Almost surely, 2^{1163633661100} is an apocalyptic number.

1163633661100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163633661100 is an abundant number, since it is smaller than the sum of its proper divisors (1494936179540).

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

1163633661100 is a wasteful number, since it uses less digits than its factorization.

1163633661100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134959 (or 134952 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 1163633661100 in words is "one trillion, one hundred sixty-three billion, six hundred thirty-three million, six hundred sixty-one thousand, one hundred".