126020564046 has 128 divisors (see below), whose sum is σ = 306903273600. Its totient is φ = 38093690880.

The previous prime is 126020564041. The next prime is 126020564077. The reversal of 126020564046 is 640465020621.

126020564046 is a `hidden beast` number, since 1 + 2 + 6 + 0 + 2 + 0 + 5 + 640 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 126020564046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126020564041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55539000 + ... + 55541268.

It is an arithmetic number, because the mean of its divisors is an integer number (2397681825).

Almost surely, 2^126020564046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126020564046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153451636800).

126020564046 is an abundant number, since it is smaller than the sum of its proper divisors (180882709554).

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

126020564046 is a wasteful number, since it uses less digits than its factorization.

126020564046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 126020564046 its reverse (640465020621), we get a palindrome (766485584667).

The spelling of 126020564046 in words is "one hundred twenty-six billion, twenty million, five hundred sixty-four thousand, forty-six".