162019145923 has 8 divisors (see below), whose sum is σ = 162522427392. Its totient is φ = 161515998336.

The previous prime is 162019145861. The next prime is 162019145933. The reversal of 162019145923 is 329541910261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162019145923 - 2¹⁷ = 162019014851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162019145923.

It is not an unprimeable number, because it can be changed into a prime (162019145933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2746686 + ... + 2805052.

It is an arithmetic number, because the mean of its divisors is an integer number (20315303424).

Almost surely, 2^162019145923 is an apocalyptic number.

162019145923 is a deficient number, since it is larger than the sum of its proper divisors (503281469).

162019145923 is an equidigital number, since it uses as much as digits as its factorization.

162019145923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66941.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 162019145923 in words is "one hundred sixty-two billion, nineteen million, one hundred forty-five thousand, nine hundred twenty-three".