16663272162155 has 4 divisors (see below), whose sum is σ = 19995926594592. Its totient is φ = 13330617729720.

The previous prime is 16663272162149. The next prime is 16663272162157. The reversal of 16663272162155 is 55126127236661.

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

It is not a de Polignac number, because 16663272162155 - 2¹⁰ = 16663272161131 is a prime.

It is a super-2 number, since 2×16663272162155² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16663272162097 and 16663272162106.

It is not an unprimeable number, because it can be changed into a prime (16663272162157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666327216211 + ... + 1666327216220.

It is an arithmetic number, because the mean of its divisors is an integer number (4998981648648).

Almost surely, 2^{16663272162155} is an apocalyptic number.

16663272162155 is a deficient number, since it is larger than the sum of its proper divisors (3332654432437).

16663272162155 is an equidigital number, since it uses as much as digits as its factorization.

16663272162155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332654432436.

The product of its digits is 5443200, while the sum is 53.

The spelling of 16663272162155 in words is "sixteen trillion, six hundred sixty-three billion, two hundred seventy-two million, one hundred sixty-two thousand, one hundred fifty-five".