55665615067 has 2 divisors, whose sum is σ = 55665615068. Its totient is φ = 55665615066.

The previous prime is 55665615017. The next prime is 55665615143. The reversal of 55665615067 is 76051656655.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55665615067 is a prime.

It is not a weakly prime, because it can be changed into another prime (55665615017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27832807533 + 27832807534.

It is an arithmetic number, because the mean of its divisors is an integer number (27832807534).

Almost surely, 2^55665615067 is an apocalyptic number.

55665615067 is a deficient number, since it is larger than the sum of its proper divisors (1).

55665615067 is an equidigital number, since it uses as much as digits as its factorization.

55665615067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670000, while the sum is 52.

The spelling of 55665615067 in words is "fifty-five billion, six hundred sixty-five million, six hundred fifteen thousand, sixty-seven".