42990165122 has 16 divisors (see below), whose sum is σ = 67367350080. Its totient is φ = 20536559472.

The previous prime is 42990165079. The next prime is 42990165137. The reversal of 42990165122 is 22156109924.

It is a self number, because there is not a number n which added to its sum of digits gives 42990165122.

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, 504473 + ... + 583500.

It is an arithmetic number, because the mean of its divisors is an integer number (4210459380).

Almost surely, 2^42990165122 is an apocalyptic number.

42990165122 is a deficient number, since it is larger than the sum of its proper divisors (24377184958).

42990165122 is a wasteful number, since it uses less digits than its factorization.

42990165122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088857.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 42990165122 in words is "forty-two billion, nine hundred ninety million, one hundred sixty-five thousand, one hundred twenty-two".