16555345056724 has 6 divisors (see below), whose sum is σ = 28971853849274. Its totient is φ = 8277672528360.

The previous prime is 16555345056709. The next prime is 16555345056787. The reversal of 16555345056724 is 42765054355561.

It can be written as a sum of positive squares in only one way, i.e., 15851004494224 + 704340562500 = 3981332^2 + 839250^2 .

It is a super-2 number, since 2×16555345056724² (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 as a sum of consecutive naturals, namely, 2069418132087 + ... + 2069418132094.

Almost surely, 2^{16555345056724} is an apocalyptic number.

It is an amenable number.

16555345056724 is a deficient number, since it is larger than the sum of its proper divisors (12416508792550).

16555345056724 is a wasteful number, since it uses less digits than its factorization.

16555345056724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138836264185 (or 4138836264183 counting only the distinct ones).

The product of its (nonzero) digits is 75600000, while the sum is 58.

The spelling of 16555345056724 in words is "sixteen trillion, five hundred fifty-five billion, three hundred forty-five million, fifty-six thousand, seven hundred twenty-four".