55665016556 has 6 divisors (see below), whose sum is σ = 97413778980. Its totient is φ = 27832508276.

The previous prime is 55665016531. The next prime is 55665016573. The reversal of 55665016556 is 65561056655.

It is a super-2 number, since 2×55665016556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 6958127066 + ... + 6958127073.

It is an arithmetic number, because the mean of its divisors is an integer number (16235629830).

Almost surely, 2^55665016556 is an apocalyptic number.

It is an amenable number.

55665016556 is a deficient number, since it is larger than the sum of its proper divisors (41748762424).

55665016556 is a wasteful number, since it uses less digits than its factorization.

55665016556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13916254143 (or 13916254141 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 50.

The spelling of 55665016556 in words is "fifty-five billion, six hundred sixty-five million, sixteen thousand, five hundred fifty-six".