1170066720 has 48 divisors (see below), whose sum is σ = 3685711680. Its totient is φ = 312017664.

The previous prime is 1170066659. The next prime is 1170066727. The reversal of 1170066720 is 276600711.

It is a happy number.

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

It is a super-2 number, since 2×1170066720² = 2738112258503116800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1170066727) 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, 1218340 + ... + 1219299.

It is an arithmetic number, because the mean of its divisors is an integer number (76785660).

Almost surely, 2^1170066720 is an apocalyptic number.

1170066720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170066720 is an abundant number, since it is smaller than the sum of its proper divisors (2515644960).

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

1170066720 is a wasteful number, since it uses less digits than its factorization.

1170066720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437657 (or 2437649 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1170066720 is about 34206.2380275879. The cubic root of 1170066720 is about 1053.7482724917.

The spelling of 1170066720 in words is "one billion, one hundred seventy million, sixty-six thousand, seven hundred twenty".