126603056181 has 8 divisors (see below), whose sum is σ = 192918942784. Its totient is φ = 72344603520.

The previous prime is 126603056159. The next prime is 126603056189. The reversal of 126603056181 is 181650306621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126603056181 - 2¹⁸ = 126602794037 is a prime.

It is a super-3 number, since 3×126603056181³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126603056189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3014358460 + ... + 3014358501.

It is an arithmetic number, because the mean of its divisors is an integer number (24114867848).

Almost surely, 2^126603056181 is an apocalyptic number.

It is an amenable number.

126603056181 is a deficient number, since it is larger than the sum of its proper divisors (66315886603).

126603056181 is an equidigital number, since it uses as much as digits as its factorization.

126603056181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028716971.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 126603056181 in words is "one hundred twenty-six billion, six hundred three million, fifty-six thousand, one hundred eighty-one".