66432502357 has 8 divisors (see below), whose sum is σ = 73850524160. Its totient is φ = 59344170480.

The previous prime is 66432502343. The next prime is 66432502393. The reversal of 66432502357 is 75320523466.

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

It is a de Polignac number, because none of the positive numbers 2^k-66432502357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66432502307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82422057 + ... + 82422862.

It is an arithmetic number, because the mean of its divisors is an integer number (9231315520).

Almost surely, 2^66432502357 is an apocalyptic number.

It is an amenable number.

66432502357 is a deficient number, since it is larger than the sum of its proper divisors (7418021803).

66432502357 is a wasteful number, since it uses less digits than its factorization.

66432502357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164844963.

The product of its (nonzero) digits is 907200, while the sum is 43.

The spelling of 66432502357 in words is "sixty-six billion, four hundred thirty-two million, five hundred two thousand, three hundred fifty-seven".