127236516386550 has 96 divisors (see below), whose sum is σ = 316877479971840. Its totient is φ = 33786637651200.

The previous prime is 127236516386549. The next prime is 127236516386561. The reversal of 127236516386550 is 55683615632721.

It is a super-2 number, since 2×127236516386550² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2084754535 + ... + 2084815565.

It is an arithmetic number, because the mean of its divisors is an integer number (3300807083040).

Almost surely, 2^{127236516386550} is an apocalyptic number.

127236516386550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 127236516386550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158438739985920).

127236516386550 is an abundant number, since it is smaller than the sum of its proper divisors (189640963585290).

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

127236516386550 is a wasteful number, since it uses less digits than its factorization.

127236516386550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119438 (or 119433 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 127236516386550 in words is "one hundred twenty-seven trillion, two hundred thirty-six billion, five hundred sixteen million, three hundred eighty-six thousand, five hundred fifty".