66402282542 has 16 divisors (see below), whose sum is σ = 100600851312. Its totient is φ = 32868739200.

The previous prime is 66402282539. The next prime is 66402282593. The reversal of 66402282542 is 24528220466.

It is a self number, because there is not a number n which added to its sum of digits gives 66402282542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3082493 + ... + 3103959.

It is an arithmetic number, because the mean of its divisors is an integer number (6287553207).

Almost surely, 2^66402282542 is an apocalyptic number.

66402282542 is a deficient number, since it is larger than the sum of its proper divisors (34198568770).

66402282542 is a wasteful number, since it uses less digits than its factorization.

66402282542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36883.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 66402282542 in words is "sixty-six billion, four hundred two million, two hundred eighty-two thousand, five hundred forty-two".