1608465506 has 16 divisors (see below), whose sum is σ = 2616931800. Its totient is φ = 738462720.

The previous prime is 1608465503. The next prime is 1608465527. The reversal of 1608465506 is 6055648061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1516401481 + 92064025 = 38941^2 + 9595^2 .

It is a super-2 number, since 2×1608465506² = 5174322567983672072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (1608465503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575531 + ... + 578318.

Almost surely, 2^1608465506 is an apocalyptic number.

1608465506 is a deficient number, since it is larger than the sum of its proper divisors (1008466294).

1608465506 is a wasteful number, since it uses less digits than its factorization.

1608465506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153909.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 1608465506 is about 40105.6792237708. The cubic root of 1608465506 is about 1171.6662420778. Note that the first 3 decimals are identical.

The spelling of 1608465506 in words is "one billion, six hundred eight million, four hundred sixty-five thousand, five hundred six".