1170647680 has 32 divisors (see below), whose sum is σ = 2798581140. Its totient is φ = 468258816.

The previous prime is 1170647677. The next prime is 1170647689. The reversal of 1170647680 is 867460711.

It can be written as a sum of positive squares in 2 ways, for example, as 1119839296 + 50808384 = 33464^2 + 7128^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1170647689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913929 + ... + 915208.

Almost surely, 2^1170647680 is an apocalyptic number.

1170647680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170647680 is an abundant number, since it is smaller than the sum of its proper divisors (1627933460).

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

1170647680 is an equidigital number, since it uses as much as digits as its factorization.

1170647680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829156 (or 1829144 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1170647680 is about 34214.7289920584. The cubic root of 1170647680 is about 1053.9226455405.

The spelling of 1170647680 in words is "one billion, one hundred seventy million, six hundred forty-seven thousand, six hundred eighty".