1605255662 has 4 divisors (see below), whose sum is σ = 2407883496. Its totient is φ = 802627830.

The previous prime is 1605255649. The next prime is 1605255737. The reversal of 1605255662 is 2665525061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401313914 + ... + 401313917.

It is an arithmetic number, because the mean of its divisors is an integer number (601970874).

Almost surely, 2^1605255662 is an apocalyptic number.

1605255662 is a deficient number, since it is larger than the sum of its proper divisors (802627834).

1605255662 is an equidigital number, since it uses as much as digits as its factorization.

1605255662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802627833.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 1605255662 is about 40065.6419142387. The cubic root of 1605255662 is about 1170.8863330401.

The spelling of 1605255662 in words is "one billion, six hundred five million, two hundred fifty-five thousand, six hundred sixty-two".