126168194080 has 24 divisors (see below), whose sum is σ = 298072358892. Its totient is φ = 50467277568.

The previous prime is 126168194059. The next prime is 126168194081. The reversal of 126168194080 is 80491861621.

It can be written as a sum of positive squares in 2 ways, for example, as 116207355664 + 9960838416 = 340892^2 + 99804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126168194080.

It is not an unprimeable number, because it can be changed into a prime (126168194081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394275447 + ... + 394275766.

Almost surely, 2^126168194080 is an apocalyptic number.

126168194080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126168194080 is an abundant number, since it is smaller than the sum of its proper divisors (171904164812).

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

126168194080 is an equidigital number, since it uses as much as digits as its factorization.

126168194080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788551228 (or 788551220 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 126168194080 in words is "one hundred twenty-six billion, one hundred sixty-eight million, one hundred ninety-four thousand, eighty".