1696128664 has 16 divisors (see below), whose sum is σ = 3182145120. Its totient is φ = 847556640.

The previous prime is 1696128661. The next prime is 1696128671. The reversal of 1696128664 is 4668216961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1696128661) 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, 49072 + ... + 76159.

It is an arithmetic number, because the mean of its divisors is an integer number (198884070).

Almost surely, 2^1696128664 is an apocalyptic number.

It is an amenable number.

1696128664 is a deficient number, since it is larger than the sum of its proper divisors (1486016456).

1696128664 is a wasteful number, since it uses less digits than its factorization.

1696128664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126930 (or 126926 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 1696128664 is about 41184.0826533747. The cubic root of 1696128664 is about 1192.5765475843.

The spelling of 1696128664 in words is "one billion, six hundred ninety-six million, one hundred twenty-eight thousand, six hundred sixty-four".