16555220343164 has 24 divisors (see below), whose sum is σ = 29035493141760. Its totient is φ = 8259366742704.

The previous prime is 16555220343143. The next prime is 16555220343191. The reversal of 16555220343164 is 46134302255561.

It is a super-2 number, since 2×16555220343164² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 44416127 + ... + 44787305.

It is an arithmetic number, because the mean of its divisors is an integer number (1209812214240).

Almost surely, 2^{16555220343164} is an apocalyptic number.

It is an amenable number.

16555220343164 is a deficient number, since it is larger than the sum of its proper divisors (12480272798596).

16555220343164 is a wasteful number, since it uses less digits than its factorization.

16555220343164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395729 (or 395727 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 16555220343164 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty million, three hundred forty-three thousand, one hundred sixty-four".