13601507966 has 4 divisors (see below), whose sum is σ = 20402261952. Its totient is φ = 6800753982.

The previous prime is 13601507963. The next prime is 13601507981. The reversal of 13601507966 is 66970510631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66970510631 = 27983 ⋅2393257.

It is a super-2 number, since 2×13601507966² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13601507963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400376990 + ... + 3400376993.

It is an arithmetic number, because the mean of its divisors is an integer number (5100565488).

Almost surely, 2^13601507966 is an apocalyptic number.

13601507966 is a deficient number, since it is larger than the sum of its proper divisors (6800753986).

13601507966 is an equidigital number, since it uses as much as digits as its factorization.

13601507966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800753985.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 13601507966 in words is "thirteen billion, six hundred one million, five hundred seven thousand, nine hundred sixty-six".