126685501160505 has 32 divisors (see below), whose sum is σ = 233421835097088. Its totient is φ = 57471285144000.

The previous prime is 126685501160473. The next prime is 126685501160509. The reversal of 126685501160505 is 505061105586621.

It is not a de Polignac number, because 126685501160505 - 2⁵ = 126685501160473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126685501160509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4605057171 + ... + 4605084680.

It is an arithmetic number, because the mean of its divisors is an integer number (7294432346784).

Almost surely, 2^{126685501160505} is an apocalyptic number.

126685501160505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126685501160505 is a deficient number, since it is larger than the sum of its proper divisors (106736333936583).

126685501160505 is a wasteful number, since it uses less digits than its factorization.

126685501160505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210141997.

The product of its (nonzero) digits is 2160000, while the sum is 51.

The spelling of 126685501160505 in words is "one hundred twenty-six trillion, six hundred eighty-five billion, five hundred one million, one hundred sixty thousand, five hundred five".