165151453240064 has 144 divisors (see below), whose sum is σ = 339328359754272. Its totient is φ = 80163573202944.

The previous prime is 165151453240043. The next prime is 165151453240093. The reversal of 165151453240064 is 460042354151561.

It is a super-2 number, since 2×165151453240064² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8882443952 + ... + 8882462544.

It is an arithmetic number, because the mean of its divisors is an integer number (2356446942738).

Almost surely, 2^{165151453240064} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165151453240064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169664179877136).

165151453240064 is an abundant number, since it is smaller than the sum of its proper divisors (174176906514208).

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

165151453240064 is a wasteful number, since it uses less digits than its factorization.

165151453240064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20702 (or 20688 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 165151453240064 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, four hundred fifty-three million, two hundred forty thousand, sixty-four".