22159146542 has 16 divisors (see below), whose sum is σ = 37351873440. Its totient is φ = 9782632992.

The previous prime is 22159146539. The next prime is 22159146551. The reversal of 22159146542 is 24564195122.

It is a self number, because there is not a number n which added to its sum of digits gives 22159146542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18527117 + ... + 18528312.

It is an arithmetic number, because the mean of its divisors is an integer number (2334492090).

Almost surely, 2^22159146542 is an apocalyptic number.

22159146542 is a deficient number, since it is larger than the sum of its proper divisors (15192726898).

22159146542 is a wasteful number, since it uses less digits than its factorization.

22159146542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37055467.

The product of its digits is 172800, while the sum is 41.

The spelling of 22159146542 in words is "twenty-two billion, one hundred fifty-nine million, one hundred forty-six thousand, five hundred forty-two".