165151622062242 has 256 divisors, whose sum is σ = 389585064960000. Its totient is φ = 51751594718208.

The previous prime is 165151622062111. The next prime is 165151622062253. The reversal of 165151622062242 is 242260226151561.

165151622062242 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 5 + 16 + 2 + 2 + 0 + 622 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35524115134 + ... + 35524119782.

It is an arithmetic number, because the mean of its divisors is an integer number (1521816660000).

Almost surely, 2^{165151622062242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165151622062242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194792532480000).

165151622062242 is an abundant number, since it is smaller than the sum of its proper divisors (224433442897758).

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

165151622062242 is a wasteful number, since it uses less digits than its factorization.

165151622062242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062 (or 6056 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 165151622062242 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, six hundred twenty-two million, sixty-two thousand, two hundred forty-two".