2100196685652 has 96 divisors (see below), whose sum is σ = 5329773496320. Its totient is φ = 639806048640.

The previous prime is 2100196685633. The next prime is 2100196685681. The reversal of 2100196685652 is 2565866910012.

It is a happy number.

It is a super-2 number, since 2×2100196685652² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100196685595 and 2100196685604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98502249 + ... + 98523567.

It is an arithmetic number, because the mean of its divisors is an integer number (55518473920).

Almost surely, 2^{2100196685652} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100196685652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2664886748160).

2100196685652 is an abundant number, since it is smaller than the sum of its proper divisors (3229576810668).

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

2100196685652 is a wasteful number, since it uses less digits than its factorization.

2100196685652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27573 (or 27571 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 2100196685652 in words is "two trillion, one hundred billion, one hundred ninety-six million, six hundred eighty-five thousand, six hundred fifty-two".