21632344207126 has 32 divisors (see below), whose sum is σ = 35340411506400. Its totient is φ = 9891801803520.

The previous prime is 21632344207109. The next prime is 21632344207207. The reversal of 21632344207126 is 62170244323612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4476436 + ... + 7956328.

It is an arithmetic number, because the mean of its divisors is an integer number (1104387859575).

Almost surely, 2^{21632344207126} is an apocalyptic number.

21632344207126 is a deficient number, since it is larger than the sum of its proper divisors (13708067299274).

21632344207126 is a wasteful number, since it uses less digits than its factorization.

21632344207126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485584.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 21632344207126 in words is "twenty-one trillion, six hundred thirty-two billion, three hundred forty-four million, two hundred seven thousand, one hundred twenty-six".