66730060171501 has 4 divisors (see below), whose sum is σ = 70242168601600. Its totient is φ = 63217951741404.

The previous prime is 66730060171483. The next prime is 66730060171507. The reversal of 66730060171501 is 10517106003766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66730060171501 - 2⁵ = 66730060171469 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 (66730060171507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756054215021 + ... + 1756054215058.

It is an arithmetic number, because the mean of its divisors is an integer number (17560542150400).

Almost surely, 2^{66730060171501} is an apocalyptic number.

It is an amenable number.

66730060171501 is a deficient number, since it is larger than the sum of its proper divisors (3512108430099).

66730060171501 is a wasteful number, since it uses less digits than its factorization.

66730060171501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512108430098.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 66730060171501 in words is "sixty-six trillion, seven hundred thirty billion, sixty million, one hundred seventy-one thousand, five hundred one".