126720150555 has 8 divisors (see below), whose sum is σ = 202752240912. Its totient is φ = 67584080288.

The previous prime is 126720150481. The next prime is 126720150593. The reversal of 126720150555 is 555051027621.

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 126720150555 - 2²⁵ = 126686596123 is a prime.

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, 4224005004 + ... + 4224005033.

It is an arithmetic number, because the mean of its divisors is an integer number (25344030114).

Almost surely, 2^126720150555 is an apocalyptic number.

126720150555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126720150555 is a deficient number, since it is larger than the sum of its proper divisors (76032090357).

126720150555 is an equidigital number, since it uses as much as digits as its factorization.

126720150555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8448010045.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 126720150555 in words is "one hundred twenty-six billion, seven hundred twenty million, one hundred fifty thousand, five hundred fifty-five".