21167105094 has 24 divisors (see below), whose sum is σ = 46928622312. Its totient is φ = 6891615360.

The previous prime is 21167105053. The next prime is 21167105143. The reversal of 21167105094 is 49050176112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13673067 + ... + 13674614.

It is an arithmetic number, because the mean of its divisors is an integer number (1955359263).

Almost surely, 2^21167105094 is an apocalyptic number.

21167105094 is an abundant number, since it is smaller than the sum of its proper divisors (25761517218).

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

21167105094 is a wasteful number, since it uses less digits than its factorization.

21167105094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27347732 (or 27347729 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 21167105094 in words is "twenty-one billion, one hundred sixty-seven million, one hundred five thousand, ninety-four".