66460233436442 has 4 divisors (see below), whose sum is σ = 99690350154666. Its totient is φ = 33230116718220.

The previous prime is 66460233436417. The next prime is 66460233436447. The reversal of 66460233436442 is 24463433206466.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59743485230881 + 6716748205561 = 7729391^2 + 2591669^2 .

It is not an unprimeable number, because it can be changed into a prime (66460233436447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16615058359109 + ... + 16615058359112.

Almost surely, 2^{66460233436442} is an apocalyptic number.

66460233436442 is a deficient number, since it is larger than the sum of its proper divisors (33230116718224).

66460233436442 is a wasteful number, since it uses less digits than its factorization.

66460233436442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33230116718223.

The product of its (nonzero) digits is 35831808, while the sum is 53.

The spelling of 66460233436442 in words is "sixty-six trillion, four hundred sixty billion, two hundred thirty-three million, four hundred thirty-six thousand, four hundred forty-two".