66150700501 has 8 divisors (see below), whose sum is σ = 66328029144. Its totient is φ = 65973600000.

The previous prime is 66150700471. The next prime is 66150700559. The reversal of 66150700501 is 10500705166.

It can be written as a sum of positive squares in 4 ways, for example, as 2583180625 + 63567519876 = 50825^2 + 252126^2 .

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 66150700501 - 2²¹ = 66148603349 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 (66150700801) 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, 531751 + ... + 644251.

It is an arithmetic number, because the mean of its divisors is an integer number (8291003643).

Almost surely, 2^66150700501 is an apocalyptic number.

It is an amenable number.

66150700501 is a deficient number, since it is larger than the sum of its proper divisors (177328643).

66150700501 is a wasteful number, since it uses less digits than its factorization.

66150700501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114071.

The product of its (nonzero) digits is 6300, while the sum is 31.

The spelling of 66150700501 in words is "sixty-six billion, one hundred fifty million, seven hundred thousand, five hundred one".