126142523550 has 72 divisors (see below), whose sum is σ = 339165780096. Its totient is φ = 33611915520.

The previous prime is 126142523543. The next prime is 126142523557. The reversal of 126142523550 is 55325241621.

126142523550 is a `hidden beast` number, since 1 + 2 + 61 + 4 + 25 + 23 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (126142523543) and next prime (126142523557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126142523557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 475587 + ... + 691713.

Almost surely, 2^126142523550 is an apocalyptic number.

126142523550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126142523550 is an abundant number, since it is smaller than the sum of its proper divisors (213023256546).

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

126142523550 is a wasteful number, since it uses less digits than its factorization.

126142523550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217442 (or 217434 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 126142523550 in words is "one hundred twenty-six billion, one hundred forty-two million, five hundred twenty-three thousand, five hundred fifty".