66560155551150 has 24 divisors (see below), whose sum is σ = 165069185767224. Its totient is φ = 17749374813600.

The previous prime is 66560155551137. The next prime is 66560155551151. The reversal of 66560155551150 is 5115555106566.

It is a junction number, because it is equal to n+sod(n) for n = 66560155551093 and 66560155551102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66560155551151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221867185021 + ... + 221867185320.

It is an arithmetic number, because the mean of its divisors is an integer number (6877882740301).

Almost surely, 2^{66560155551150} is an apocalyptic number.

66560155551150 is an abundant number, since it is smaller than the sum of its proper divisors (98509030216074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66560155551150 is a wasteful number, since it uses less digits than its factorization.

66560155551150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443734370356 (or 443734370351 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 51.

The spelling of 66560155551150 in words is "sixty-six trillion, five hundred sixty billion, one hundred fifty-five million, five hundred fifty-one thousand, one hundred fifty".