21716361422406 has 96 divisors (see below), whose sum is σ = 55861256295936. Its totient is φ = 5968082736000.

The previous prime is 21716361422351. The next prime is 21716361422411. The reversal of 21716361422406 is 60422416361712.

21716361422406 is a `hidden beast` number, since 2 + 1 + 7 + 1 + 6 + 3 + 614 + 2 + 24 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29236800 + ... + 29970371.

It is an arithmetic number, because the mean of its divisors is an integer number (581888086416).

Almost surely, 2^{21716361422406} is an apocalyptic number.

21716361422406 is an abundant number, since it is smaller than the sum of its proper divisors (34144894873530).

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

21716361422406 is a wasteful number, since it uses less digits than its factorization.

21716361422406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59207298 (or 59207295 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 21716361422406 in words is "twenty-one trillion, seven hundred sixteen billion, three hundred sixty-one million, four hundred twenty-two thousand, four hundred six".