12601642064 has 40 divisors (see below), whose sum is σ = 26678968032. Its totient is φ = 5718625920.

The previous prime is 12601641979. The next prime is 12601642069. The reversal of 12601642064 is 46024610621.

It is a self number, because there is not a number n which added to its sum of digits gives 12601642064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601642069) 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, 49487 + ... + 166289.

Almost surely, 2^12601642064 is an apocalyptic number.

It is an amenable number.

12601642064 is an abundant number, since it is smaller than the sum of its proper divisors (14077325968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12601642064 is a wasteful number, since it uses less digits than its factorization.

12601642064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117435 (or 117429 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 12601642064 in words is "twelve billion, six hundred one million, six hundred forty-two thousand, sixty-four".