56720745105354 has 288 divisors, whose sum is σ = 151938226440000. Its totient is φ = 15184993950720.

The previous prime is 56720745105331. The next prime is 56720745105469. The reversal of 56720745105354 is 45350154702765.

It is a happy number.

56720745105354 is a `hidden beast` number, since 5 + 6 + 7 + 2 + 0 + 74 + 510 + 5 + 3 + 54 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56720745105354.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 76310997 + ... + 77050695.

It is an arithmetic number, because the mean of its divisors is an integer number (527563286250).

Almost surely, 2^{56720745105354} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56720745105354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75969113220000).

56720745105354 is an abundant number, since it is smaller than the sum of its proper divisors (95217481334646).

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

56720745105354 is a wasteful number, since it uses less digits than its factorization.

56720745105354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739874 (or 739860 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 54.

The spelling of 56720745105354 in words is "fifty-six trillion, seven hundred twenty billion, seven hundred forty-five million, one hundred five thousand, three hundred fifty-four".