21652601236130 has 8 divisors (see below), whose sum is σ = 38974682225052. Its totient is φ = 8661040494448.

The previous prime is 21652601236099. The next prime is 21652601236241. The reversal of 21652601236130 is 3163210625612.

It can be written as a sum of positive squares in 2 ways, for example, as 21586124411569 + 66476824561 = 4646087^2 + 257831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082630061797 + ... + 1082630061816.

Almost surely, 2^{21652601236130} is an apocalyptic number.

21652601236130 is a deficient number, since it is larger than the sum of its proper divisors (17322080988922).

21652601236130 is a wasteful number, since it uses less digits than its factorization.

21652601236130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165260123620.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 21652601236130 in words is "twenty-one trillion, six hundred fifty-two billion, six hundred one million, two hundred thirty-six thousand, one hundred thirty".