1171553064 has 32 divisors (see below), whose sum is σ = 3195145440. Its totient is φ = 355016000.

The previous prime is 1171553063. The next prime is 1171553077. The reversal of 1171553064 is 4603551711.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1171553063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218587 + ... + 2219114.

It is an arithmetic number, because the mean of its divisors is an integer number (99848295).

Almost surely, 2^1171553064 is an apocalyptic number.

It is an amenable number.

1171553064 is an abundant number, since it is smaller than the sum of its proper divisors (2023592376).

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

1171553064 is a wasteful number, since it uses less digits than its factorization.

1171553064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437721 (or 4437717 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1171553064 is about 34227.9573448373. The cubic root of 1171553064 is about 1054.1942783091.

The spelling of 1171553064 in words is "one billion, one hundred seventy-one million, five hundred fifty-three thousand, sixty-four".