12646652901 has 8 divisors (see below), whose sum is σ = 17254348320. Its totient is φ = 8235029712.

The previous prime is 12646652899. The next prime is 12646652917. The reversal of 12646652901 is 10925664621.

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

It is not a de Polignac number, because 12646652901 - 2¹ = 12646652899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646652101) 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, 49017906 + ... + 49018163.

It is an arithmetic number, because the mean of its divisors is an integer number (2156793540).

Almost surely, 2^12646652901 is an apocalyptic number.

It is an amenable number.

12646652901 is a deficient number, since it is larger than the sum of its proper divisors (4607695419).

12646652901 is an equidigital number, since it uses as much as digits as its factorization.

12646652901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98036115.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 12646652901 in words is "twelve billion, six hundred forty-six million, six hundred fifty-two thousand, nine hundred one".