16388761946 has 8 divisors (see below), whose sum is σ = 24588716724. Its totient is φ = 8192523040.

The previous prime is 16388761901. The next prime is 16388761979. The reversal of 16388761946 is 64916788361.

16388761946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15613752025 + 775009921 = 124955^2 + 27839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917915 + ... + 935598.

Almost surely, 2^16388761946 is an apocalyptic number.

16388761946 is a deficient number, since it is larger than the sum of its proper divisors (8199954778).

16388761946 is a wasteful number, since it uses less digits than its factorization.

16388761946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857936.

The product of its digits is 10450944, while the sum is 59.

The spelling of 16388761946 in words is "sixteen billion, three hundred eighty-eight million, seven hundred sixty-one thousand, nine hundred forty-six".