1659413816 has 8 divisors (see below), whose sum is σ = 3111400920. Its totient is φ = 829706904.

The previous prime is 1659413813. The next prime is 1659413827. The reversal of 1659413816 is 6183149561.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659413813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103713356 + ... + 103713371.

It is an arithmetic number, because the mean of its divisors is an integer number (388925115).

Almost surely, 2^1659413816 is an apocalyptic number.

It is an amenable number.

1659413816 is a deficient number, since it is larger than the sum of its proper divisors (1451987104).

1659413816 is a wasteful number, since it uses less digits than its factorization.

1659413816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207426733 (or 207426729 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 1659413816 is about 40735.9032795395. The cubic root of 1659413816 is about 1183.9087596327.

The spelling of 1659413816 in words is "one billion, six hundred fifty-nine million, four hundred thirteen thousand, eight hundred sixteen".