16040087616808 has 16 divisors (see below), whose sum is σ = 30075212667060. Its totient is φ = 8020030905600.

The previous prime is 16040087616767. The next prime is 16040087616881. The reversal of 16040087616808 is 80861678004061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12991857954084 + 3048229662724 = 3604422^2 + 1745918^2 .

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, 5532768 + ... + 7917808.

Almost surely, 2^{16040087616808} is an apocalyptic number.

It is an amenable number.

16040087616808 is a deficient number, since it is larger than the sum of its proper divisors (14035125050252).

16040087616808 is a wasteful number, since it uses less digits than its factorization.

16040087616808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225708 (or 3225704 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 16040087616808 in words is "sixteen trillion, forty billion, eighty-seven million, six hundred sixteen thousand, eight hundred eight".