66050005011650 has 48 divisors (see below), whose sum is σ = 141905080306080. Its totient is φ = 22605349305600.

The previous prime is 66050005011569. The next prime is 66050005011691. The reversal of 66050005011650 is 5611050005066.

It is a self number, because there is not a number n which added to its sum of digits gives 66050005011650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3532076480 + ... + 3532095179.

It is an arithmetic number, because the mean of its divisors is an integer number (2956355839710).

Almost surely, 2^{66050005011650} is an apocalyptic number.

66050005011650 is an abundant number, since it is smaller than the sum of its proper divisors (75855075294430).

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

66050005011650 is a wasteful number, since it uses less digits than its factorization.

66050005011650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064171699 (or 7064171694 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 66050005011650 in words is "sixty-six trillion, fifty billion, five million, eleven thousand, six hundred fifty".