1165600406 has 4 divisors (see below), whose sum is σ = 1748400612. Its totient is φ = 582800202.

The previous prime is 1165600399. The next prime is 1165600421. The reversal of 1165600406 is 6040065611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6040065611 = 67 ⋅90150233.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291400100 + ... + 291400103.

It is an arithmetic number, because the mean of its divisors is an integer number (437100153).

Almost surely, 2^1165600406 is an apocalyptic number.

1165600406 is a deficient number, since it is larger than the sum of its proper divisors (582800206).

1165600406 is an equidigital number, since it uses as much as digits as its factorization.

1165600406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582800205.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1165600406 is about 34140.8905273427. The cubic root of 1165600406 is about 1052.4057930097.

The spelling of 1165600406 in words is "one billion, one hundred sixty-five million, six hundred thousand, four hundred six".