123166540444350 has 48 divisors (see below), whose sum is σ = 328949406484272. Its totient is φ = 30317917647360.

The previous prime is 123166540444271. The next prime is 123166540444357. The reversal of 123166540444350 is 53444045661321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123166540444350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123166540444357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31581162267 + ... + 31581166166.

It is an arithmetic number, because the mean of its divisors is an integer number (6853112635089).

Almost surely, 2^{123166540444350} is an apocalyptic number.

123166540444350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123166540444350 is an abundant number, since it is smaller than the sum of its proper divisors (205782866039922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123166540444350 is a wasteful number, since it uses less digits than its factorization.

123166540444350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63162328461 (or 63162328456 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 123166540444350 in words is "one hundred twenty-three trillion, one hundred sixty-six billion, five hundred forty million, four hundred forty-four thousand, three hundred fifty".