1656233126436 has 192 divisors, whose sum is σ = 4775539507200. Its totient is φ = 436510698624.

The previous prime is 1656233126407. The next prime is 1656233126489. The reversal of 1656233126436 is 6346213326561.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6436825 + ... + 6689183.

It is an arithmetic number, because the mean of its divisors is an integer number (24872601600).

Almost surely, 2^{1656233126436} 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 1656233126436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2387769753600).

1656233126436 is an abundant number, since it is smaller than the sum of its proper divisors (3119306380764).

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

1656233126436 is a wasteful number, since it uses less digits than its factorization.

1656233126436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252518 (or 252516 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 48.

The spelling of 1656233126436 in words is "one trillion, six hundred fifty-six billion, two hundred thirty-three million, one hundred twenty-six thousand, four hundred thirty-six".