66051652 has 12 divisors (see below), whose sum is σ = 115711596. Its totient is φ = 32991200.

The previous prime is 66051637. The next prime is 66051659. The reversal of 66051652 is 25615066.

It can be written as a sum of positive squares in 2 ways, for example, as 21215236 + 44836416 = 4606^2 + 6696^2 .

It is not an unprimeable number, because it can be changed into a prime (66051659) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4099 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (9642633).

Almost surely, 2^66051652 is an apocalyptic number.

It is an amenable number.

66051652 is a deficient number, since it is larger than the sum of its proper divisors (49659944).

66051652 is a wasteful number, since it uses less digits than its factorization.

66051652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17318 (or 17316 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 66051652 is about 8127.2167437567. The cubic root of 66051652 is about 404.2293978703.

The spelling of 66051652 in words is "sixty-six million, fifty-one thousand, six hundred fifty-two".