66651160155 has 16 divisors (see below), whose sum is σ = 106678485024. Its totient is φ = 35535075840.

The previous prime is 66651160063. The next prime is 66651160187. The reversal of 66651160155 is 55106115666.

It is not a de Polignac number, because 66651160155 - 2⁸ = 66651159899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717886 + ... + 805395.

It is an arithmetic number, because the mean of its divisors is an integer number (6667405314).

Almost surely, 2^66651160155 is an apocalyptic number.

66651160155 is a deficient number, since it is larger than the sum of its proper divisors (40027324869).

66651160155 is a wasteful number, since it uses less digits than its factorization.

66651160155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526206.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 66651160155 in words is "sixty-six billion, six hundred fifty-one million, one hundred sixty thousand, one hundred fifty-five".