21116050151105 has 64 divisors (see below), whose sum is σ = 31319840401920. Its totient is φ = 13308777529344.

The previous prime is 21116050151089. The next prime is 21116050151113. The reversal of 21116050151105 is 50115105061112.

It is a cyclic number.

It is not a de Polignac number, because 21116050151105 - 2⁴ = 21116050151089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 326099342 + ... + 326164088.

It is an arithmetic number, because the mean of its divisors is an integer number (489372506280).

Almost surely, 2^{21116050151105} is an apocalyptic number.

It is an amenable number.

21116050151105 is a deficient number, since it is larger than the sum of its proper divisors (10203790250815).

21116050151105 is a wasteful number, since it uses less digits than its factorization.

21116050151105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67818.

The product of its (nonzero) digits is 1500, while the sum is 29.

The spelling of 21116050151105 in words is "twenty-one trillion, one hundred sixteen billion, fifty million, one hundred fifty-one thousand, one hundred five".