2097666036 has 36 divisors (see below), whose sum is σ = 5303976132. Its totient is φ = 699018624.

The previous prime is 2097666029. The next prime is 2097666041. The reversal of 2097666036 is 6306667902.

It can be written as a sum of positive squares in 2 ways, for example, as 882446436 + 1215219600 = 29706^2 + 34860^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 2097665982 and 2097666000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166470 + ... + 178626.

Almost surely, 2^2097666036 is an apocalyptic number.

It is an amenable number.

2097666036 is an abundant number, since it is smaller than the sum of its proper divisors (3206310096).

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

2097666036 is a wasteful number, since it uses less digits than its factorization.

2097666036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960 (or 16955 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 2097666036 is about 45800.2842349259. The cubic root of 2097666036 is about 1280.1045723484.

The spelling of 2097666036 in words is "two billion, ninety-seven million, six hundred sixty-six thousand, thirty-six".