66503403025142 has 8 divisors (see below), whose sum is σ = 99755140830600. Its totient is φ = 33251689414944.

The previous prime is 66503403025139. The next prime is 66503403025201. The reversal of 66503403025142 is 24152030430566.

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

It is a super-2 number, since 2×66503403025142² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66503403025142.

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, 4506734 + ... + 12382142.

It is an arithmetic number, because the mean of its divisors is an integer number (12469392603825).

Almost surely, 2^{66503403025142} is an apocalyptic number.

66503403025142 is a deficient number, since it is larger than the sum of its proper divisors (33251737805458).

66503403025142 is a wasteful number, since it uses less digits than its factorization.

66503403025142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12097630.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 66503403025142 in words is "sixty-six trillion, five hundred three billion, four hundred three million, twenty-five thousand, one hundred forty-two".