2105666602152 has 64 divisors (see below), whose sum is σ = 5570239795200. Its totient is φ = 661465920960.

The previous prime is 2105666602139. The next prime is 2105666602157. The reversal of 2105666602152 is 2512066665012.

It is a happy number.

It is a super-2 number, since 2×2105666602152² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2105666602157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12001098 + ... + 12175289.

It is an arithmetic number, because the mean of its divisors is an integer number (87034996800).

Almost surely, 2^{2105666602152} is an apocalyptic number.

It is an amenable number.

2105666602152 is an abundant number, since it is smaller than the sum of its proper divisors (3464573193048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105666602152 is a wasteful number, since it uses less digits than its factorization.

2105666602152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24176606 (or 24176602 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 2105666602152 in words is "two trillion, one hundred five billion, six hundred sixty-six million, six hundred two thousand, one hundred fifty-two".