1606553416 has 16 divisors (see below), whose sum is σ = 3244002300. Its totient is φ = 741486144.

The previous prime is 1606553383. The next prime is 1606553419. The reversal of 1606553416 is 6143556061.

It can be written as a sum of positive squares in 2 ways, for example, as 1377152100 + 229401316 = 37110^2 + 15146^2 .

It is a super-2 number, since 2×1606553416² = 5162027756922538112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1606553419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7723711 + ... + 7723918.

Almost surely, 2^1606553416 is an apocalyptic number.

It is an amenable number.

1606553416 is an abundant number, since it is smaller than the sum of its proper divisors (1637448884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1606553416 is a wasteful number, since it uses less digits than its factorization.

1606553416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15447648 (or 15447644 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1606553416 is about 40081.8339899761. The cubic root of 1606553416 is about 1171.2017787686.

The spelling of 1606553416 in words is "one billion, six hundred six million, five hundred fifty-three thousand, four hundred sixteen".