16161551655166 has 8 divisors (see below), whose sum is σ = 24242459674680. Its totient is φ = 8080731763608.

The previous prime is 16161551655127. The next prime is 16161551655173. The reversal of 16161551655166 is 66155615516161.

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

It is a super-2 number, since 2×16161551655166² (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 in 3 ways as a sum of consecutive naturals, for example, 21571596 + ... + 22308223.

It is an arithmetic number, because the mean of its divisors is an integer number (3030307459335).

Almost surely, 2^{16161551655166} is an apocalyptic number.

16161551655166 is a deficient number, since it is larger than the sum of its proper divisors (8080908019514).

16161551655166 is a wasteful number, since it uses less digits than its factorization.

16161551655166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44063978.

The product of its digits is 4860000, while the sum is 55.

The spelling of 16161551655166 in words is "sixteen trillion, one hundred sixty-one billion, five hundred fifty-one million, six hundred fifty-five thousand, one hundred sixty-six".