2196615672 has 160 divisors (see below), whose sum is σ = 6522238800. Its totient is φ = 689472000.

The previous prime is 2196615649. The next prime is 2196615683. The reversal of 2196615672 is 2765166912.

2196615672 is a `hidden beast` number, since 21 + 9 + 6 + 61 + 567 + 2 = 666.

It is a super-3 number, since 3×2196615672³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 769047 + ... + 771897.

Almost surely, 2^2196615672 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 2196615672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261119400).

2196615672 is an abundant number, since it is smaller than the sum of its proper divisors (4325623128).

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

2196615672 is a wasteful number, since it uses less digits than its factorization.

2196615672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2926 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 2196615672 is about 46868.0666552398. The cubic root of 2196615672 is about 1299.9241912401.

The spelling of 2196615672 in words is "two billion, one hundred ninety-six million, six hundred fifteen thousand, six hundred seventy-two".