16006303644 has 48 divisors (see below), whose sum is σ = 38434023936. Its totient is φ = 5182028800.

The previous prime is 16006303639. The next prime is 16006303669. The reversal of 16006303644 is 44630360061.

It is a congruent number.

It is an unprimeable number.

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, 34437 + ... + 182204.

It is an arithmetic number, because the mean of its divisors is an integer number (800708832).

Almost surely, 2^16006303644 is an apocalyptic number.

It is an amenable number.

16006303644 is an abundant number, since it is smaller than the sum of its proper divisors (22427720292).

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

16006303644 is a wasteful number, since it uses less digits than its factorization.

16006303644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216826 (or 216824 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 16006303644 in words is "sixteen billion, six million, three hundred three thousand, six hundred forty-four".