16646311023 has 16 divisors (see below), whose sum is σ = 22335945696. Its totient is φ = 11027181440.

The previous prime is 16646311013. The next prime is 16646311037. The reversal of 16646311023 is 32011364661.

16646311023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16646311023 - 2⁴ = 16646311007 is a prime.

It is a super-3 number, since 3×16646311023³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16646311013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1028413 + ... + 1044473.

It is an arithmetic number, because the mean of its divisors is an integer number (1395996606).

Almost surely, 2^16646311023 is an apocalyptic number.

16646311023 is a deficient number, since it is larger than the sum of its proper divisors (5689634673).

16646311023 is a wasteful number, since it uses less digits than its factorization.

16646311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18234.

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 16646311023 its reverse (32011364661), we get a palindrome (48657675684).

The spelling of 16646311023 in words is "sixteen billion, six hundred forty-six million, three hundred eleven thousand, twenty-three".