126512211016451 has 8 divisors (see below), whose sum is σ = 138814559548560. Its totient is φ = 114577096768992.

The previous prime is 126512211016327. The next prime is 126512211016453. The reversal of 126512211016451 is 154610112215621.

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

It is a de Polignac number, because none of the positive numbers 2^k-126512211016451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126512211016453) 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, 91808570441 + ... + 91808571818.

It is an arithmetic number, because the mean of its divisors is an integer number (17351819943570).

Almost surely, 2^{126512211016451} is an apocalyptic number.

126512211016451 is a deficient number, since it is larger than the sum of its proper divisors (12302348532109).

126512211016451 is a wasteful number, since it uses less digits than its factorization.

126512211016451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183617142325.

The product of its (nonzero) digits is 28800, while the sum is 38.

The spelling of 126512211016451 in words is "one hundred twenty-six trillion, five hundred twelve billion, two hundred eleven million, sixteen thousand, four hundred fifty-one".