1001165133400 has 24 divisors (see below), whose sum is σ = 2327708935620. Its totient is φ = 400466053280.

The previous prime is 1001165133359. The next prime is 1001165133413. The reversal of 1001165133400 is 43315611001.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2502912634 + ... + 2502913033.

Almost surely, 2^{1001165133400} is an apocalyptic number.

1001165133400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001165133400 is an abundant number, since it is smaller than the sum of its proper divisors (1326543802220).

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

1001165133400 is a wasteful number, since it uses less digits than its factorization.

1001165133400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005825683 (or 5005825674 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 1001165133400 in words is "one trillion, one billion, one hundred sixty-five million, one hundred thirty-three thousand, four hundred".