21671007116050 has 48 divisors (see below), whose sum is σ = 41709772546560. Its totient is φ = 8367130820160.

The previous prime is 21671007116029. The next prime is 21671007116089. The reversal of 21671007116050 is 5061170017612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3036367 + ... + 7249933.

It is an arithmetic number, because the mean of its divisors is an integer number (868953594720).

Almost surely, 2^{21671007116050} is an apocalyptic number.

21671007116050 is a deficient number, since it is larger than the sum of its proper divisors (20038765430510).

21671007116050 is a wasteful number, since it uses less digits than its factorization.

21671007116050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217155 (or 4217150 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 21671007116050 in words is "twenty-one trillion, six hundred seventy-one billion, seven million, one hundred sixteen thousand, fifty".