66061550510 has 8 divisors (see below), whose sum is σ = 118910790936. Its totient is φ = 26424620200.

The previous prime is 66061550459. The next prime is 66061550543. The reversal of 66061550510 is 1505516066.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3303077516 + ... + 3303077535.

It is an arithmetic number, because the mean of its divisors is an integer number (14863848867).

Almost surely, 2^66061550510 is an apocalyptic number.

66061550510 is a deficient number, since it is larger than the sum of its proper divisors (52849240426).

66061550510 is a wasteful number, since it uses less digits than its factorization.

66061550510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606155058.

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

The spelling of 66061550510 in words is "sixty-six billion, sixty-one million, five hundred fifty thousand, five hundred ten".