1601695912 has 16 divisors (see below), whose sum is σ = 3004040340. Its totient is φ = 800618496.

The previous prime is 1601695889. The next prime is 1601695957. The reversal of 1601695912 is 2195961061.

It can be written as a sum of positive squares in 2 ways, for example, as 1556618116 + 45077796 = 39454^2 + 6714^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 3048 + ... + 56680.

Almost surely, 2^1601695912 is an apocalyptic number.

It is an amenable number.

1601695912 is a deficient number, since it is larger than the sum of its proper divisors (1402344428).

1601695912 is a wasteful number, since it uses less digits than its factorization.

1601695912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57372 (or 57368 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 1601695912 is about 40021.1932855581. The cubic root of 1601695912 is about 1170.0201890981.

The spelling of 1601695912 in words is "one billion, six hundred one million, six hundred ninety-five thousand, nine hundred twelve".