21650050106001 has 12 divisors (see below), whose sum is σ = 31296405867012. Its totient is φ = 14422238459136.

The previous prime is 21650050105963. The next prime is 21650050106063. The reversal of 21650050106001 is 10060105005612.

It is a happy number.

21650050106001 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 0 + 0 + 50 + 1 + 0 + 600 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18839280499776 + 2810769606225 = 4340424^2 + 1676535^2 .

It is not a de Polignac number, because 21650050106001 - 2¹¹ = 21650050103953 is a prime.

It is a super-2 number, since 2×21650050106001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21650050106071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927344196 + ... + 927367541.

It is an arithmetic number, because the mean of its divisors is an integer number (2608033822251).

Almost surely, 2^{21650050106001} is an apocalyptic number.

It is an amenable number.

21650050106001 is a deficient number, since it is larger than the sum of its proper divisors (9646355761011).

21650050106001 is a wasteful number, since it uses less digits than its factorization.

21650050106001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854713040 (or 1854713037 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 21650050106001 in words is "twenty-one trillion, six hundred fifty billion, fifty million, one hundred six thousand, one".