16660343346 has 16 divisors (see below), whose sum is σ = 33322283904. Its totient is φ = 5553181584.

The previous prime is 16660343321. The next prime is 16660343419. The reversal of 16660343346 is 64334306661.

It is a junction number, because it is equal to n+sod(n) for n = 16660343298 and 16660343307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101820 + ... + 209016.

It is an arithmetic number, because the mean of its divisors is an integer number (2082642744).

Almost surely, 2^16660343346 is an apocalyptic number.

16660343346 is an abundant number, since it is smaller than the sum of its proper divisors (16661940558).

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

16660343346 is a wasteful number, since it uses less digits than its factorization.

16660343346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133105.

The product of its (nonzero) digits is 559872, while the sum is 42.

The spelling of 16660343346 in words is "sixteen billion, six hundred sixty million, three hundred forty-three thousand, three hundred forty-six".