21632350117651 has 64 divisors (see below), whose sum is σ = 27858664931328. Its totient is φ = 16326410969088.

The previous prime is 21632350117639. The next prime is 21632350117657. The reversal of 21632350117651 is 15671105323612.

It is a cyclic number.

It is not a de Polignac number, because 21632350117651 - 2⁷ = 21632350117523 is a prime.

It is a super-2 number, since 2×21632350117651² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21632350117598 and 21632350117607.

It is not an unprimeable number, because it can be changed into a prime (21632350117657) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2870150155 + ... + 2870157691.

It is an arithmetic number, because the mean of its divisors is an integer number (435291639552).

Almost surely, 2^{21632350117651} is an apocalyptic number.

21632350117651 is a deficient number, since it is larger than the sum of its proper divisors (6226314813677).

21632350117651 is a wasteful number, since it uses less digits than its factorization.

21632350117651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 21632350117651 in words is "twenty-one trillion, six hundred thirty-two billion, three hundred fifty million, one hundred seventeen thousand, six hundred fifty-one".