2171653067 has 2 divisors, whose sum is σ = 2171653068. Its totient is φ = 2171653066.

The previous prime is 2171653021. The next prime is 2171653069. The reversal of 2171653067 is 7603561712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2171653067 - 2¹² = 2171648971 is a prime.

Together with 2171653069, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2171653067.

It is not a weakly prime, because it can be changed into another prime (2171653069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085826533 + 1085826534.

It is an arithmetic number, because the mean of its divisors is an integer number (1085826534).

Almost surely, 2^2171653067 is an apocalyptic number.

2171653067 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171653067 is an equidigital number, since it uses as much as digits as its factorization.

2171653067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 2171653067 is about 46600.9985622626. The cubic root of 2171653067 is about 1294.9812546295.

The spelling of 2171653067 in words is "two billion, one hundred seventy-one million, six hundred fifty-three thousand, sixty-seven".