66771150 has 24 divisors (see below), whose sum is σ = 165592824. Its totient is φ = 17805600.

The previous prime is 66771091. The next prime is 66771167. The reversal of 66771150 is 5117766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222421 + ... + 222720.

It is an arithmetic number, because the mean of its divisors is an integer number (6899701).

Almost surely, 2^66771150 is an apocalyptic number.

66771150 is an abundant number, since it is smaller than the sum of its proper divisors (98821674).

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

66771150 is a wasteful number, since it uses less digits than its factorization.

66771150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445156 (or 445151 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 66771150 is about 8171.3615756494. The cubic root of 66771150 is about 405.6918520507.

It can be divided in two parts, 667 and 71150, that added together give a palindrome (71817).

The spelling of 66771150 in words is "sixty-six million, seven hundred seventy-one thousand, one hundred fifty".