126206401236 has 12 divisors (see below), whose sum is σ = 294481602912. Its totient is φ = 42068800408.

The previous prime is 126206401207. The next prime is 126206401247. The reversal of 126206401236 is 632104602621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 126206401197 and 126206401206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5258600040 + ... + 5258600063.

It is an arithmetic number, because the mean of its divisors is an integer number (24540133576).

Almost surely, 2^126206401236 is an apocalyptic number.

It is an amenable number.

126206401236 is an abundant number, since it is smaller than the sum of its proper divisors (168275201676).

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

126206401236 is a wasteful number, since it uses less digits than its factorization.

126206401236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517200110 (or 10517200108 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 126206401236 in words is "one hundred twenty-six billion, two hundred six million, four hundred one thousand, two hundred thirty-six".