66530441437 has 8 divisors (see below), whose sum is σ = 68830416000. Its totient is φ = 64230855024.

The previous prime is 66530441407. The next prime is 66530441521. The reversal of 66530441437 is 73414403566.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66530441437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66530441393 and 66530441402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66530441407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276064 + ... + 457462.

It is an arithmetic number, because the mean of its divisors is an integer number (8603802000).

Almost surely, 2^66530441437 is an apocalyptic number.

It is an amenable number.

66530441437 is a deficient number, since it is larger than the sum of its proper divisors (2299974563).

66530441437 is a wasteful number, since it uses less digits than its factorization.

66530441437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194075.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 66530441437 in words is "sixty-six billion, five hundred thirty million, four hundred forty-one thousand, four hundred thirty-seven".