126884666087550 has 144 divisors (see below), whose sum is σ = 391268435744160. Its totient is φ = 28877736222720.

The previous prime is 126884666087497. The next prime is 126884666087561. The reversal of 126884666087550 is 55780666488621.

It is a super-2 number, since 2×126884666087550² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 85705635 + ... + 87173534.

It is an arithmetic number, because the mean of its divisors is an integer number (2717141914890).

Almost surely, 2^{126884666087550} is an apocalyptic number.

126884666087550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126884666087550 is an abundant number, since it is smaller than the sum of its proper divisors (264383769656610).

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

126884666087550 is a wasteful number, since it uses less digits than its factorization.

126884666087550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172879427 (or 172879419 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 72.

The spelling of 126884666087550 in words is "one hundred twenty-six trillion, eight hundred eighty-four billion, six hundred sixty-six million, eighty-seven thousand, five hundred fifty".