1606420016 has 40 divisors (see below), whose sum is σ = 3205294848. Its totient is φ = 779456000.

The previous prime is 1606420001. The next prime is 1606420063. The reversal of 1606420016 is 6100246061.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118886 + ... + 131706.

Almost surely, 2^1606420016 is an apocalyptic number.

1606420016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1606420016 is a deficient number, since it is larger than the sum of its proper divisors (1598874832).

1606420016 is a wasteful number, since it uses less digits than its factorization.

1606420016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13061 (or 13055 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1606420016 is about 40080.1698599195. The cubic root of 1606420016 is about 1171.1693609976.

Adding to 1606420016 its reverse (6100246061), we get a palindrome (7706666077).

The spelling of 1606420016 in words is "one billion, six hundred six million, four hundred twenty thousand, sixteen".