2101694445 has 160 divisors (see below), whose sum is σ = 4231941120. Its totient is φ = 992839680.

The previous prime is 2101694431. The next prime is 2101694449. The reversal of 2101694445 is 5444961012.

It is not a de Polignac number, because 2101694445 - 2⁴ = 2101694429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101694449) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9177591 + ... + 9177819.

It is an arithmetic number, because the mean of its divisors is an integer number (26449632).

Almost surely, 2^2101694445 is an apocalyptic number.

It is an amenable number.

2101694445 is an abundant number, since it is smaller than the sum of its proper divisors (2130246675).

2101694445 is a wasteful number, since it uses less digits than its factorization.

2101694445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2101694445 is about 45844.2411323385. The cubic root of 2101694445 is about 1280.9234963553.

The spelling of 2101694445 in words is "two billion, one hundred one million, six hundred ninety-four thousand, four hundred forty-five".