127211051616198 has 64 divisors (see below), whose sum is σ = 277674163126272. Its totient is φ = 38531753765280.

The previous prime is 127211051616101. The next prime is 127211051616227. The reversal of 127211051616198 is 891616150112721.

It is a self number, because there is not a number n which added to its sum of digits gives 127211051616198.

It is a congruent number.

It is an unprimeable number.

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, 2433843261 + ... + 2433895527.

It is an arithmetic number, because the mean of its divisors is an integer number (4338658798848).

Almost surely, 2^{127211051616198} is an apocalyptic number.

127211051616198 is an abundant number, since it is smaller than the sum of its proper divisors (150463111510074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127211051616198 is a wasteful number, since it uses less digits than its factorization.

127211051616198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67889.

The product of its (nonzero) digits is 362880, while the sum is 51.

The spelling of 127211051616198 in words is "one hundred twenty-seven trillion, two hundred eleven billion, fifty-one million, six hundred sixteen thousand, one hundred ninety-eight".