6550451250066 has 64 divisors (see below), whose sum is σ = 14602957084800. Its totient is φ = 2176528324608.

The previous prime is 6550451250061. The next prime is 6550451250097. The reversal of 6550451250066 is 6600521540556.

6550451250066 is a `hidden beast` number, since 6 + 550 + 45 + 1 + 2 + 50 + 0 + 6 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (6550451250061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55163305 + ... + 55281923.

It is an arithmetic number, because the mean of its divisors is an integer number (228171204450).

Almost surely, 2^{6550451250066} is an apocalyptic number.

6550451250066 is an abundant number, since it is smaller than the sum of its proper divisors (8052505834734).

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

6550451250066 is a wasteful number, since it uses less digits than its factorization.

6550451250066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121880 (or 121874 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 6550451250066 in words is "six trillion, five hundred fifty billion, four hundred fifty-one million, two hundred fifty thousand, sixty-six".