126403142660 has 96 divisors (see below), whose sum is σ = 282423933792. Its totient is φ = 47356968960.

The previous prime is 126403142651. The next prime is 126403142707. The reversal of 126403142660 is 66241304621.

It can be written as a sum of positive squares in 16 ways, for example, as 20865224704 + 105537917956 = 144448^2 + 324866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126403142660.

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, 85349120 + ... + 85350600.

It is an arithmetic number, because the mean of its divisors is an integer number (2941915977).

Almost surely, 2^126403142660 is an apocalyptic number.

126403142660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126403142660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141211966896).

126403142660 is an abundant number, since it is smaller than the sum of its proper divisors (156020791132).

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

126403142660 is a wasteful number, since it uses less digits than its factorization.

126403142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 126403142660 in words is "one hundred twenty-six billion, four hundred three million, one hundred forty-two thousand, six hundred sixty".