1609554216 has 32 divisors (see below), whose sum is σ = 4074825600. Its totient is φ = 529726080.

The previous prime is 1609554211. The next prime is 1609554223. The reversal of 1609554216 is 6124559061.

It is not an unprimeable number, because it can be changed into a prime (1609554211) 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, 422565 + ... + 426356.

It is an arithmetic number, because the mean of its divisors is an integer number (127338300).

Almost surely, 2^1609554216 is an apocalyptic number.

It is an amenable number.

1609554216 is an abundant number, since it is smaller than the sum of its proper divisors (2465271384).

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

1609554216 is a wasteful number, since it uses less digits than its factorization.

1609554216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849009 (or 849005 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 1609554216 is about 40119.2499431383. The cubic root of 1609554216 is about 1171.9305347748.

The spelling of 1609554216 in words is "one billion, six hundred nine million, five hundred fifty-four thousand, two hundred sixteen".