50005500555066 has 128 divisors (see below), whose sum is σ = 115903111403520. Its totient is φ = 14087380770048.

The previous prime is 50005500555029. The next prime is 50005500555107. The reversal of 50005500555066 is 66055500550005.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8602353976 + ... + 8602359788.

It is an arithmetic number, because the mean of its divisors is an integer number (905493057840).

Almost surely, 2^{50005500555066} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50005500555066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57951555701760).

50005500555066 is an abundant number, since it is smaller than the sum of its proper divisors (65897610848454).

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

50005500555066 is a wasteful number, since it uses less digits than its factorization.

50005500555066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340.

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 50005500555066 in words is "fifty trillion, five billion, five hundred million, five hundred fifty-five thousand, sixty-six".