16442667666474 has 16 divisors (see below), whose sum is σ = 37583240380608. Its totient is φ = 4697905047552.

The previous prime is 16442667666463. The next prime is 16442667666539. The reversal of 16442667666474 is 47466676624461.

It is a happy number.

It is a super-3 number, since 3×16442667666474³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16442667666399 and 16442667666408.

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, 195746043607 + ... + 195746043690.

It is an arithmetic number, because the mean of its divisors is an integer number (2348952523788).

Almost surely, 2^{16442667666474} is an apocalyptic number.

16442667666474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16442667666474 is an abundant number, since it is smaller than the sum of its proper divisors (21140572714134).

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

16442667666474 is a wasteful number, since it uses less digits than its factorization.

16442667666474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391492087309.

The product of its digits is 1170505728, while the sum is 69.

The spelling of 16442667666474 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-seven million, six hundred sixty-six thousand, four hundred seventy-four".