126180211549 has 8 divisors (see below), whose sum is σ = 144242138880. Its totient is φ = 108127329936.

The previous prime is 126180211537. The next prime is 126180211561. The reversal of 126180211549 is 945112081621.

It is an interprime number because it is at equal distance from previous prime (126180211537) and next prime (126180211561).

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

It is a cyclic number.

It is not a de Polignac number, because 126180211549 - 2¹⁹ = 126179687261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126180211349) 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, 2231509 + ... + 2287354.

It is an arithmetic number, because the mean of its divisors is an integer number (18030267360).

Almost surely, 2^126180211549 is an apocalyptic number.

It is an amenable number.

126180211549 is a deficient number, since it is larger than the sum of its proper divisors (18061927331).

126180211549 is an equidigital number, since it uses as much as digits as its factorization.

126180211549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522859.

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 126180211549 in words is "one hundred twenty-six billion, one hundred eighty million, two hundred eleven thousand, five hundred forty-nine".