55667881564707 has 18 divisors (see below), whose sum is σ = 74296678515276. Its totient is φ = 37075538521440.

The previous prime is 55667881564703. The next prime is 55667881564819. The reversal of 55667881564707 is 70746518876655.

It is not a de Polignac number, because 55667881564707 - 2² = 55667881564703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55667881564703) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 22240462818 + ... + 22240465320.

Almost surely, 2^{55667881564707} is an apocalyptic number.

55667881564707 is a deficient number, since it is larger than the sum of its proper divisors (18628796950569).

55667881564707 is an frugal number, since it uses more digits than its factorization.

55667881564707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8451 (or 4227 counting only the distinct ones).

The product of its (nonzero) digits is 2370816000, while the sum is 75.

The spelling of 55667881564707 in words is "fifty-five trillion, six hundred sixty-seven billion, eight hundred eighty-one million, five hundred sixty-four thousand, seven hundred seven".