16451513027242 has 16 divisors (see below), whose sum is σ = 26486803411272. Its totient is φ = 7635835215360.

The previous prime is 16451513027239. The next prime is 16451513027311. The reversal of 16451513027242 is 24272031515461.

It can be written as a sum of positive squares in 4 ways, for example, as 16381033927801 + 70479099441 = 4047349^2 + 265479^2 .

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, 3314162109 + ... + 3314167072.

Almost surely, 2^{16451513027242} is an apocalyptic number.

16451513027242 is a deficient number, since it is larger than the sum of its proper divisors (10035290384030).

16451513027242 is a wasteful number, since it uses less digits than its factorization.

16451513027242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628329273.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 16451513027242 in words is "sixteen trillion, four hundred fifty-one billion, five hundred thirteen million, twenty-seven thousand, two hundred forty-two".