165770850924 has 216 divisors, whose sum is σ = 506379793920. Its totient is φ = 44766509760.

The previous prime is 165770850871. The next prime is 165770850929. The reversal of 165770850924 is 429058077561.

165770850924 is a `hidden beast` number, since 1 + 65 + 7 + 70 + 8 + 509 + 2 + 4 = 666.

165770850924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165770850929) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 10405437 + ... + 10421355.

Almost surely, 2^165770850924 is an apocalyptic number.

165770850924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165770850924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253189896960).

165770850924 is an abundant number, since it is smaller than the sum of its proper divisors (340608942996).

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

165770850924 is a wasteful number, since it uses less digits than its factorization.

165770850924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16041 (or 16005 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 165770850924 in words is "one hundred sixty-five billion, seven hundred seventy million, eight hundred fifty thousand, nine hundred twenty-four".