55050151666618 has 64 divisors (see below), whose sum is σ = 86637517678080. Its totient is φ = 26214238144512.

The previous prime is 55050151666589. The next prime is 55050151666621. The reversal of 55050151666618 is 81666615105055.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278999505 + ... + 279196747.

It is an arithmetic number, because the mean of its divisors is an integer number (1353711213720).

Almost surely, 2^{55050151666618} is an apocalyptic number.

55050151666618 is a deficient number, since it is larger than the sum of its proper divisors (31587366011462).

55050151666618 is a wasteful number, since it uses less digits than its factorization.

55050151666618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197911.

The product of its (nonzero) digits is 6480000, while the sum is 55.

The spelling of 55050151666618 in words is "fifty-five trillion, fifty billion, one hundred fifty-one million, six hundred sixty-six thousand, six hundred eighteen".