168790645923123 has 64 divisors (see below), whose sum is σ = 259880581988352. Its totient is φ = 95453518867200.

The previous prime is 168790645923047. The next prime is 168790645923173. The reversal of 168790645923123 is 321329546097861.

It is not a de Polignac number, because 168790645923123 - 2¹⁰ = 168790645922099 is a prime.

It is a super-2 number, since 2×168790645923123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168790645923173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1809322786 + ... + 1809416072.

It is an arithmetic number, because the mean of its divisors is an integer number (4060634093568).

It is a 1-persistent number, because it is pandigital, but 2⋅168790645923123 = 337581291846246 is not.

Almost surely, 2^{168790645923123} is an apocalyptic number.

168790645923123 is a deficient number, since it is larger than the sum of its proper divisors (91089936065229).

168790645923123 is a wasteful number, since it uses less digits than its factorization.

168790645923123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95584.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 168790645923123 in words is "one hundred sixty-eight trillion, seven hundred ninety billion, six hundred forty-five million, nine hundred twenty-three thousand, one hundred twenty-three".