16168154438 has 16 divisors (see below), whose sum is σ = 24302384640. Its totient is φ = 8067376200.

The previous prime is 16168154417. The next prime is 16168154441. The reversal of 16168154438 is 83445186161.

It is a super-2 number, since 2×16168154438² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16168154392 and 16168154401.

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, 2889023 + ... + 2894613.

It is an arithmetic number, because the mean of its divisors is an integer number (1518899040).

Almost surely, 2^16168154438 is an apocalyptic number.

16168154438 is a deficient number, since it is larger than the sum of its proper divisors (8134230202).

16168154438 is a wasteful number, since it uses less digits than its factorization.

16168154438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323.

The product of its digits is 552960, while the sum is 47.

The spelling of 16168154438 in words is "sixteen billion, one hundred sixty-eight million, one hundred fifty-four thousand, four hundred thirty-eight".