123664119958 has 16 divisors (see below), whose sum is σ = 186500283840. Its totient is φ = 61498260736.

The previous prime is 123664119937. The next prime is 123664119977. The reversal of 123664119958 is 859911466321.

It is a super-2 number, since 2×123664119958² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123664119899 and 123664119908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49491 + ... + 499777.

It is an arithmetic number, because the mean of its divisors is an integer number (11656267740).

Almost surely, 2^123664119958 is an apocalyptic number.

123664119958 is a deficient number, since it is larger than the sum of its proper divisors (62836163882).

123664119958 is a wasteful number, since it uses less digits than its factorization.

123664119958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451031.

The product of its digits is 2799360, while the sum is 55.

The spelling of 123664119958 in words is "one hundred twenty-three billion, six hundred sixty-four million, one hundred nineteen thousand, nine hundred fifty-eight".