2167127216651 has 4 divisors (see below), whose sum is σ = 2208016409472. Its totient is φ = 2126238023832.

The previous prime is 2167127216633. The next prime is 2167127216671. The reversal of 2167127216651 is 1566127217612.

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 2167127216651 - 2²² = 2167123022347 is a prime.

It is a super-3 number, since 3×2167127216651³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2167127216596 and 2167127216605.

It is not an unprimeable number, because it can be changed into a prime (2167127216671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20444596331 + ... + 20444596436.

It is an arithmetic number, because the mean of its divisors is an integer number (552004102368).

Almost surely, 2^{2167127216651} is an apocalyptic number.

2167127216651 is a deficient number, since it is larger than the sum of its proper divisors (40889192821).

2167127216651 is an equidigital number, since it uses as much as digits as its factorization.

2167127216651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40889192820.

The product of its digits is 423360, while the sum is 47.

The spelling of 2167127216651 in words is "two trillion, one hundred sixty-seven billion, one hundred twenty-seven million, two hundred sixteen thousand, six hundred fifty-one".