55716526217664 has 168 divisors, whose sum is σ = 177534021555072. Its totient is φ = 16590528829440.

The previous prime is 55716526217641. The next prime is 55716526217683. The reversal of 55716526217664 is 46671262561755.

55716526217664 is a `hidden beast` number, since 5 + 5 + 7 + 16 + 526 + 21 + 76 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119780379 + ... + 120244634.

It is an arithmetic number, because the mean of its divisors is an integer number (1056750128304).

Almost surely, 2^{55716526217664} is an apocalyptic number.

It is an amenable number.

55716526217664 is an abundant number, since it is smaller than the sum of its proper divisors (121817495337408).

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

55716526217664 is a wasteful number, since it uses less digits than its factorization.

55716526217664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240025075 (or 240025062 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 55716526217664 in words is "fifty-five trillion, seven hundred sixteen billion, five hundred twenty-six million, two hundred seventeen thousand, six hundred sixty-four".