126420866364 has 96 divisors (see below), whose sum is σ = 333846768640. Its totient is φ = 36967166208.

The previous prime is 126420866347. The next prime is 126420866387. The reversal of 126420866364 is 463668024621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6484 + ... + 502875.

Almost surely, 2^126420866364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126420866364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166923384320).

126420866364 is an abundant number, since it is smaller than the sum of its proper divisors (207425902276).

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

126420866364 is a wasteful number, since it uses less digits than its factorization.

126420866364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509459 (or 509457 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 126420866364 in words is "one hundred twenty-six billion, four hundred twenty million, eight hundred sixty-six thousand, three hundred sixty-four".