1171187616 has 48 divisors (see below), whose sum is σ = 3079490400. Its totient is φ = 389745408.

The previous prime is 1171187609. The next prime is 1171187621. The reversal of 1171187616 is 6167811711.

It is a happy number.

1171187616 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49570 + ... + 69278.

It is an arithmetic number, because the mean of its divisors is an integer number (64156050).

Almost surely, 2^1171187616 is an apocalyptic number.

1171187616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1171187616 is an abundant number, since it is smaller than the sum of its proper divisors (1908302784).

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

1171187616 is a wasteful number, since it uses less digits than its factorization.

1171187616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20341 (or 20333 counting only the distinct ones).

The product of its digits is 14112, while the sum is 39.

The square root of 1171187616 is about 34222.6184854403. The cubic root of 1171187616 is about 1054.0846536671.

The spelling of 1171187616 in words is "one billion, one hundred seventy-one million, one hundred eighty-seven thousand, six hundred sixteen".