1180920065 has 16 divisors (see below), whose sum is σ = 1527035328. Its totient is φ = 871536576.

The previous prime is 1180920047. The next prime is 1180920077. The reversal of 1180920065 is 5600290811.

It is a cyclic number.

It is not a de Polignac number, because 1180920065 - 2²² = 1176725761 is a prime.

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, 127274 + ... + 136236.

It is an arithmetic number, because the mean of its divisors is an integer number (95439708).

Almost surely, 2^1180920065 is an apocalyptic number.

It is an amenable number.

1180920065 is a deficient number, since it is larger than the sum of its proper divisors (346115263).

1180920065 is a wasteful number, since it uses less digits than its factorization.

1180920065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1180920065 is about 34364.5175289862. The cubic root of 1180920065 is about 1056.9963815761.

The spelling of 1180920065 in words is "one billion, one hundred eighty million, nine hundred twenty thousand, sixty-five".