66050055636 has 48 divisors (see below), whose sum is σ = 160156147200. Its totient is φ = 21163455360.

The previous prime is 66050055619. The next prime is 66050055641. The reversal of 66050055636 is 63655005066.

It is a congruent number.

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, 540391 + ... + 651246.

It is an arithmetic number, because the mean of its divisors is an integer number (3336586400).

Almost surely, 2^66050055636 is an apocalyptic number.

It is an amenable number.

66050055636 is an abundant number, since it is smaller than the sum of its proper divisors (94106091564).

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

66050055636 is a wasteful number, since it uses less digits than its factorization.

66050055636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191824 (or 1191822 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 66050055636 in words is "sixty-six billion, fifty million, fifty-five thousand, six hundred thirty-six".