66033401012 has 48 divisors (see below), whose sum is σ = 120592962000. Its totient is φ = 31599160320.

The previous prime is 66033400999. The next prime is 66033401089. The reversal of 66033401012 is 21010433066.

It can be written as a sum of positive squares in 8 ways, for example, as 25295630116 + 40737770896 = 159046^2 + 201836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9001298 + ... + 9008630.

It is an arithmetic number, because the mean of its divisors is an integer number (2512353375).

Almost surely, 2^66033401012 is an apocalyptic number.

It is an amenable number.

66033401012 is a deficient number, since it is larger than the sum of its proper divisors (54559560988).

66033401012 is a wasteful number, since it uses less digits than its factorization.

66033401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036 (or 8034 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 66033401012 its reverse (21010433066), we get a palindrome (87043834078).

The spelling of 66033401012 in words is "sixty-six billion, thirty-three million, four hundred one thousand, twelve".