2052121065660 has 72 divisors (see below), whose sum is σ = 6224889093696. Its totient is φ = 547221571200.

The previous prime is 2052121065649. The next prime is 2052121065679. The reversal of 2052121065660 is 665601212502.

2052121065660 is a `hidden beast` number, since 2 + 0 + 521 + 2 + 10 + 65 + 6 + 60 = 666.

It is a super-2 number, since 2×2052121065660² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14175162 + ... + 14319198.

It is an arithmetic number, because the mean of its divisors is an integer number (86456792968).

Almost surely, 2^{2052121065660} is an apocalyptic number.

2052121065660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2052121065660 is an abundant number, since it is smaller than the sum of its proper divisors (4172768028036).

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

2052121065660 is a wasteful number, since it uses less digits than its factorization.

2052121065660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223203 (or 223198 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 2052121065660 in words is "two trillion, fifty-two billion, one hundred twenty-one million, sixty-five thousand, six hundred sixty".