1689776016 has 20 divisors (see below), whose sum is σ = 4365254832. Its totient is φ = 563258656.

The previous prime is 1689776003. The next prime is 1689776027. The reversal of 1689776016 is 6106779861.

It is a self number, because there is not a number n which added to its sum of digits gives 1689776016.

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, 17601786 + ... + 17601881.

Almost surely, 2^1689776016 is an apocalyptic number.

1689776016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1689776016 is an abundant number, since it is smaller than the sum of its proper divisors (2675478816).

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

1689776016 is a wasteful number, since it uses less digits than its factorization.

1689776016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35203678 (or 35203672 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 1689776016 is about 41106.8852626905. The cubic root of 1689776016 is about 1191.0858003963.

The spelling of 1689776016 in words is "one billion, six hundred eighty-nine million, seven hundred seventy-six thousand, sixteen".