1165478976 has 112 divisors (see below), whose sum is σ = 3536980480. Its totient is φ = 375943680.

The previous prime is 1165478953. The next prime is 1165478983. The reversal of 1165478976 is 6798745611.

1165478976 is a `hidden beast` number, since 1 + 1 + 6 + 547 + 8 + 97 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42690 + ... + 64446.

Almost surely, 2^1165478976 is an apocalyptic number.

1165478976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165478976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768490240).

1165478976 is an abundant number, since it is smaller than the sum of its proper divisors (2371501504).

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

1165478976 is a wasteful number, since it uses less digits than its factorization.

1165478976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21809 (or 21793 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 1165478976 is about 34139.1121149921. The cubic root of 1165478976 is about 1052.3692458726.

The spelling of 1165478976 in words is "one billion, one hundred sixty-five million, four hundred seventy-eight thousand, nine hundred seventy-six".