2101700065671 has 40 divisors (see below), whose sum is σ = 3158317451520. Its totient is φ = 1392775685712.

The previous prime is 2101700065601. The next prime is 2101700065681. The reversal of 2101700065671 is 1765600071012.

2101700065671 is a `hidden beast` number, since 21 + 0 + 1 + 70 + 0 + 0 + 6 + 567 + 1 = 666.

It is not a de Polignac number, because 2101700065671 - 2¹⁵ = 2101700032903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101700065601) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40092540 + ... + 40144926.

It is an arithmetic number, because the mean of its divisors is an integer number (78957936288).

Almost surely, 2^{2101700065671} is an apocalyptic number.

2101700065671 is a deficient number, since it is larger than the sum of its proper divisors (1056617385849).

2101700065671 is a wasteful number, since it uses less digits than its factorization.

2101700065671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55345 (or 55336 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 2101700065671 in words is "two trillion, one hundred one billion, seven hundred million, sixty-five thousand, six hundred seventy-one".