165242359464 has 128 divisors (see below), whose sum is σ = 538346269440. Its totient is φ = 41016840192.

The previous prime is 165242359427. The next prime is 165242359531. The reversal of 165242359464 is 464953242561.

165242359464 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165242359464² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 31 ways as a sum of consecutive naturals, for example, 2188179 + ... + 2262434.

It is an arithmetic number, because the mean of its divisors is an integer number (4205830230).

Almost surely, 2^165242359464 is an apocalyptic number.

165242359464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165242359464 is an abundant number, since it is smaller than the sum of its proper divisors (373103909976).

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

165242359464 is a wasteful number, since it uses less digits than its factorization.

165242359464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450659 (or 4450655 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The spelling of 165242359464 in words is "one hundred sixty-five billion, two hundred forty-two million, three hundred fifty-nine thousand, four hundred sixty-four".