1171553376 has 96 divisors (see below), whose sum is σ = 3699682560. Its totient is φ = 317108736.

The previous prime is 1171553371. The next prime is 1171553387. The reversal of 1171553376 is 6733551711.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171553371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33111 + ... + 58646.

It is an arithmetic number, because the mean of its divisors is an integer number (38538360).

Almost surely, 2^1171553376 is an apocalyptic number.

1171553376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1171553376 is an abundant number, since it is smaller than the sum of its proper divisors (2528129184).

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

1171553376 is a wasteful number, since it uses less digits than its factorization.

1171553376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91796 (or 91788 counting only the distinct ones).

The product of its digits is 66150, while the sum is 39.

The square root of 1171553376 is about 34227.9619025147. The cubic root of 1171553376 is about 1054.1943718910.

The spelling of 1171553376 in words is "one billion, one hundred seventy-one million, five hundred fifty-three thousand, three hundred seventy-six".