66023161501 has 8 divisors (see below), whose sum is σ = 72038421504. Its totient is φ = 60010093920.

The previous prime is 66023161433. The next prime is 66023161513. The reversal of 66023161501 is 10516132066.

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 66023161501 - 2²¹ = 66021064349 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 (66023161901) 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, 484816 + ... + 605881.

It is an arithmetic number, because the mean of its divisors is an integer number (9004802688).

Almost surely, 2^66023161501 is an apocalyptic number.

It is an amenable number.

66023161501 is a deficient number, since it is larger than the sum of its proper divisors (6015260003).

66023161501 is a wasteful number, since it uses less digits than its factorization.

66023161501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096211.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 66023161501 its reverse (10516132066), we get a palindrome (76539293567).

The spelling of 66023161501 in words is "sixty-six billion, twenty-three million, one hundred sixty-one thousand, five hundred one".