53226816128640 has 512 divisors, whose sum is σ = 235027505664000. Its totient is φ = 11060117360640.

The previous prime is 53226816128611. The next prime is 53226816128657. The reversal of 53226816128640 is 4682161862235.

53226816128640 is a `hidden beast` number, since 5 + 3 + 2 + 268 + 1 + 61 + 286 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 18671100 + ... + 21332219.

It is an arithmetic number, because the mean of its divisors is an integer number (459038097000).

Almost surely, 2^{53226816128640} is an apocalyptic number.

It is an amenable number.

53226816128640 is an abundant number, since it is smaller than the sum of its proper divisors (181800689535360).

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

53226816128640 is a wasteful number, since it uses less digits than its factorization.

53226816128640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40003365 (or 40003347 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 53226816128640 in words is "fifty-three trillion, two hundred twenty-six billion, eight hundred sixteen million, one hundred twenty-eight thousand, six hundred forty".