165239954470 has 64 divisors (see below), whose sum is σ = 305130240000. Its totient is φ = 64403703936.

The previous prime is 165239954449. The next prime is 165239954479. The reversal of 165239954470 is 74459932561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165239954479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75831841 + ... + 75834019.

It is an arithmetic number, because the mean of its divisors is an integer number (4767660000).

Almost surely, 2^165239954470 is an apocalyptic number.

165239954470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165239954470 is a deficient number, since it is larger than the sum of its proper divisors (139890285530).

165239954470 is a wasteful number, since it uses less digits than its factorization.

165239954470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 165239954470 in words is "one hundred sixty-five billion, two hundred thirty-nine million, nine hundred fifty-four thousand, four hundred seventy".