660500161023 has 16 divisors (see below), whose sum is σ = 901353505536. Its totient is φ = 429994810560.

The previous prime is 660500161021. The next prime is 660500161031. The reversal of 660500161023 is 320161005066.

It is not a de Polignac number, because 660500161023 - 2¹ = 660500161021 is a prime.

It is a super-2 number, since 2×660500161023² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660500161021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16590 + ... + 1149467.

It is an arithmetic number, because the mean of its divisors is an integer number (56334594096).

Almost surely, 2^660500161023 is an apocalyptic number.

660500161023 is a deficient number, since it is larger than the sum of its proper divisors (240853344513).

660500161023 is a wasteful number, since it uses less digits than its factorization.

660500161023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170494.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 660500161023 its reverse (320161005066), we get a palindrome (980661166089).

The spelling of 660500161023 in words is "six hundred sixty billion, five hundred million, one hundred sixty-one thousand, twenty-three".