2100916671 has 32 divisors (see below), whose sum is σ = 3229440000. Its totient is φ = 1190052864.

The previous prime is 2100916651. The next prime is 2100916693. The reversal of 2100916671 is 1766190012.

It is not a de Polignac number, because 2100916671 - 2⁵ = 2100916639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100916651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1681455 + ... + 1682703.

It is an arithmetic number, because the mean of its divisors is an integer number (100920000).

Almost surely, 2^2100916671 is an apocalyptic number.

2100916671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2100916671 is a deficient number, since it is larger than the sum of its proper divisors (1128523329).

2100916671 is a wasteful number, since it uses less digits than its factorization.

2100916671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 2100916671 is about 45835.7575589190. The cubic root of 2100916671 is about 1280.7654664197.

The spelling of 2100916671 in words is "two billion, one hundred million, nine hundred sixteen thousand, six hundred seventy-one".