66470548550 has 96 divisors (see below), whose sum is σ = 148061952000. Its totient is φ = 21707199360.

The previous prime is 66470548523. The next prime is 66470548583. The reversal of 66470548550 is 5584507466.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1906676 + ... + 1941224.

It is an arithmetic number, because the mean of its divisors is an integer number (1542312000).

Almost surely, 2^66470548550 is an apocalyptic number.

66470548550 is an abundant number, since it is smaller than the sum of its proper divisors (81591403450).

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

66470548550 is a wasteful number, since it uses less digits than its factorization.

66470548550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34830 (or 34825 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 66470548550 in words is "sixty-six billion, four hundred seventy million, five hundred forty-eight thousand, five hundred fifty".