1659351964 has 12 divisors (see below), whose sum is σ = 2915436888. Its totient is φ = 826370000.

The previous prime is 1659351917. The next prime is 1659351971. The reversal of 1659351964 is 4691539561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825367 + ... + 827374.

It is an arithmetic number, because the mean of its divisors is an integer number (242953074).

Almost surely, 2^1659351964 is an apocalyptic number.

It is an amenable number.

1659351964 is a deficient number, since it is larger than the sum of its proper divisors (1256084924).

1659351964 is a wasteful number, since it uses less digits than its factorization.

1659351964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652996 (or 1652994 counting only the distinct ones).

The product of its digits is 874800, while the sum is 49.

The square root of 1659351964 is about 40735.1440895942. The cubic root of 1659351964 is about 1183.8940500138.

The spelling of 1659351964 in words is "one billion, six hundred fifty-nine million, three hundred fifty-one thousand, nine hundred sixty-four".