16165166554942 has 4 divisors (see below), whose sum is σ = 24247749832416. Its totient is φ = 8082583277470.

The previous prime is 16165166554919. The next prime is 16165166554961. The reversal of 16165166554942 is 24945566156161.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16165166554942² (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 as a sum of consecutive naturals, namely, 4041291638734 + ... + 4041291638737.

It is an arithmetic number, because the mean of its divisors is an integer number (6061937458104).

Almost surely, 2^{16165166554942} is an apocalyptic number.

16165166554942 is a deficient number, since it is larger than the sum of its proper divisors (8082583277474).

16165166554942 is an equidigital number, since it uses as much as digits as its factorization.

16165166554942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8082583277473.

The product of its digits is 46656000, while the sum is 61.

The spelling of 16165166554942 in words is "sixteen trillion, one hundred sixty-five billion, one hundred sixty-six million, five hundred fifty-four thousand, nine hundred forty-two".