22018040694 has 48 divisors (see below), whose sum is σ = 52570229712. Its totient is φ = 6617225664.

The previous prime is 22018040647. The next prime is 22018040719. The reversal of 22018040694 is 49604081022.

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 23 ways as a sum of consecutive naturals, for example, 1084057 + ... + 1104180.

It is an arithmetic number, because the mean of its divisors is an integer number (1095213119).

Almost surely, 2^22018040694 is an apocalyptic number.

22018040694 is an abundant number, since it is smaller than the sum of its proper divisors (30552189018).

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

22018040694 is a wasteful number, since it uses less digits than its factorization.

22018040694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188301 (or 2188298 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 22018040694 in words is "twenty-two billion, eighteen million, forty thousand, six hundred ninety-four".