66551150501 has 8 divisors (see below), whose sum is σ = 72883753344. Its totient is φ = 60265630720.

The previous prime is 66551150447. The next prime is 66551150543. The reversal of 66551150501 is 10505115566.

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

It is a cyclic number.

It is not a de Polignac number, because 66551150501 - 2¹⁰ = 66551149477 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 (66551150101) 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, 11767805 + ... + 11773458.

It is an arithmetic number, because the mean of its divisors is an integer number (9110469168).

Almost surely, 2^66551150501 is an apocalyptic number.

It is an amenable number.

66551150501 is a deficient number, since it is larger than the sum of its proper divisors (6332602843).

66551150501 is a wasteful number, since it uses less digits than its factorization.

66551150501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23541531.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 66551150501 in words is "sixty-six billion, five hundred fifty-one million, one hundred fifty thousand, five hundred one".