12306504661 has 8 divisors (see below), whose sum is σ = 13436955648. Its totient is φ = 11178000000.

The previous prime is 12306504647. The next prime is 12306504667. The reversal of 12306504661 is 16640560321.

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

It is a 6-Lehmer number, since φ(12306504661) divides (12306504661-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 12306504661 - 2⁷ = 12306504533 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 (12306504667) 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, 473340 + ... + 498661.

It is an arithmetic number, because the mean of its divisors is an integer number (1679619456).

Almost surely, 2^12306504661 is an apocalyptic number.

12306504661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12306504661 is the 49612-nd centered decagonal number.

It is an amenable number.

12306504661 is a deficient number, since it is larger than the sum of its proper divisors (1130450987).

12306504661 is a wasteful number, since it uses less digits than its factorization.

12306504661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973163.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12306504661 in words is "twelve billion, three hundred six million, five hundred four thousand, six hundred sixty-one".