126255220500 has 96 divisors (see below), whose sum is σ = 367755897600. Its totient is φ = 33658838400.

The previous prime is 126255220471. The next prime is 126255220547. The reversal of 126255220500 is 5022552621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6814249 + ... + 6832751.

It is an arithmetic number, because the mean of its divisors is an integer number (3830790600).

Almost surely, 2^126255220500 is an apocalyptic number.

126255220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126255220500 is an abundant number, since it is smaller than the sum of its proper divisors (241500677100).

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

126255220500 is a wasteful number, since it uses less digits than its factorization.

126255220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23074 (or 23062 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 126255220500 in words is "one hundred twenty-six billion, two hundred fifty-five million, two hundred twenty thousand, five hundred".