16423511165554 has 8 divisors (see below), whose sum is σ = 25484758705260. Its totient is φ = 7928591597136.

The previous prime is 16423511165549. The next prime is 16423511165617. The reversal of 16423511165554 is 45556111532461.

It can be written as a sum of positive squares in 2 ways, for example, as 16237055607529 + 186455558025 = 4029523^2 + 431805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16423511165554² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16423511165498 and 16423511165507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141581992749 + ... + 141581992864.

Almost surely, 2^{16423511165554} is an apocalyptic number.

16423511165554 is a deficient number, since it is larger than the sum of its proper divisors (9061247539706).

16423511165554 is a wasteful number, since it uses less digits than its factorization.

16423511165554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283163985644.

The product of its digits is 2160000, while the sum is 49.

The spelling of 16423511165554 in words is "sixteen trillion, four hundred twenty-three billion, five hundred eleven million, one hundred sixty-five thousand, five hundred fifty-four".