1155406466 has 16 divisors (see below), whose sum is σ = 1774990584. Its totient is φ = 563856384.

The previous prime is 1155406459. The next prime is 1155406481. The reversal of 1155406466 is 6646045511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 646227241 + 509179225 = 25421^2 + 22565^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7781 + ... + 48696.

Almost surely, 2^1155406466 is an apocalyptic number.

1155406466 is a deficient number, since it is larger than the sum of its proper divisors (619584118).

1155406466 is a wasteful number, since it uses less digits than its factorization.

1155406466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56725.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1155406466 is about 33991.2704381581. The cubic root of 1155406466 is about 1049.3288124718.

The spelling of 1155406466 in words is "one billion, one hundred fifty-five million, four hundred six thousand, four hundred sixty-six".