16083406987 has 4 divisors (see below), whose sum is σ = 16090113600. Its totient is φ = 16076700376.

The previous prime is 16083406967. The next prime is 16083406993. The reversal of 16083406987 is 78960438061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16083406987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16083406907) 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, 3349708 + ... + 3354505.

It is an arithmetic number, because the mean of its divisors is an integer number (4022528400).

Almost surely, 2^16083406987 is an apocalyptic number.

16083406987 is a deficient number, since it is larger than the sum of its proper divisors (6706613).

16083406987 is an equidigital number, since it uses as much as digits as its factorization.

16083406987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706612.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 16083406987 in words is "sixteen billion, eighty-three million, four hundred six thousand, nine hundred eighty-seven".