16203090666 has 32 divisors (see below), whose sum is σ = 37896933888. Its totient is φ = 4521792240.

The previous prime is 16203090661. The next prime is 16203090667. The reversal of 16203090666 is 66609030261.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16203090661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484100 + ... + 4487711.

It is an arithmetic number, because the mean of its divisors is an integer number (1184279184).

Almost surely, 2^16203090666 is an apocalyptic number.

16203090666 is an abundant number, since it is smaller than the sum of its proper divisors (21693843222).

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

16203090666 is a wasteful number, since it uses less digits than its factorization.

16203090666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971866.

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 16203090666 in words is "sixteen billion, two hundred three million, ninety thousand, six hundred sixty-six".