66503556046742 has 8 divisors (see below), whose sum is σ = 104092522508016. Its totient is φ = 31806048544072.

The previous prime is 66503556046727. The next prime is 66503556046769. The reversal of 66503556046742 is 24764065530566.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722864739593 + ... + 722864739684.

It is an arithmetic number, because the mean of its divisors is an integer number (13011565313502).

Almost surely, 2^{66503556046742} is an apocalyptic number.

66503556046742 is a deficient number, since it is larger than the sum of its proper divisors (37588966461274).

66503556046742 is a wasteful number, since it uses less digits than its factorization.

66503556046742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445729479302.

The product of its (nonzero) digits is 108864000, while the sum is 59.

The spelling of 66503556046742 in words is "sixty-six trillion, five hundred three billion, five hundred fifty-six million, forty-six thousand, seven hundred forty-two".