16545420446 has 16 divisors (see below), whose sum is σ = 24877504080. Its totient is φ = 8252944320.

The previous prime is 16545420413. The next prime is 16545420449. The reversal of 16545420446 is 64402454561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545420449) 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 7 ways as a sum of consecutive naturals, for example, 1517105 + ... + 1527971.

It is an arithmetic number, because the mean of its divisors is an integer number (1554844005).

Almost surely, 2^16545420446 is an apocalyptic number.

16545420446 is a deficient number, since it is larger than the sum of its proper divisors (8332083634).

16545420446 is a wasteful number, since it uses less digits than its factorization.

16545420446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12619.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 16545420446 in words is "sixteen billion, five hundred forty-five million, four hundred twenty thousand, four hundred forty-six".