2102167557671 has 2 divisors, whose sum is σ = 2102167557672. Its totient is φ = 2102167557670.

The previous prime is 2102167557667. The next prime is 2102167557709. The reversal of 2102167557671 is 1767557612012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102167557671 - 2² = 2102167557667 is a prime.

It is a super-4 number, since 4×2102167557671⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102167557661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051083778835 + 1051083778836.

It is an arithmetic number, because the mean of its divisors is an integer number (1051083778836).

Almost surely, 2^{2102167557671} is an apocalyptic number.

2102167557671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102167557671 is an equidigital number, since it uses as much as digits as its factorization.

2102167557671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 2102167557671 in words is "two trillion, one hundred two billion, one hundred sixty-seven million, five hundred fifty-seven thousand, six hundred seventy-one".