16161662167115 has 4 divisors (see below), whose sum is σ = 19393994600544. Its totient is φ = 12929329733688.

The previous prime is 16161662167103. The next prime is 16161662167117. The reversal of 16161662167115 is 51176126616161.

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

It is a cyclic number.

It is not a de Polignac number, because 16161662167115 - 2²⁴ = 16161645389899 is a prime.

It is a super-2 number, since 2×16161662167115² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161662167117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616166216707 + ... + 1616166216716.

It is an arithmetic number, because the mean of its divisors is an integer number (4848498650136).

Almost surely, 2^{16161662167115} is an apocalyptic number.

16161662167115 is a deficient number, since it is larger than the sum of its proper divisors (3232332433429).

16161662167115 is an equidigital number, since it uses as much as digits as its factorization.

16161662167115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232332433428.

The product of its digits is 544320, while the sum is 50.

The spelling of 16161662167115 in words is "sixteen trillion, one hundred sixty-one billion, six hundred sixty-two million, one hundred sixty-seven thousand, one hundred fifteen".