11646735401 has 8 divisors (see below), whose sum is σ = 13321448064. Its totient is φ = 9974746080.

The previous prime is 11646735391. The next prime is 11646735431. The reversal of 11646735401 is 10453764611.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11646735401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11646735431) 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, 671660 + ... + 688781.

It is an arithmetic number, because the mean of its divisors is an integer number (1665181008).

Almost surely, 2^11646735401 is an apocalyptic number.

It is an amenable number.

11646735401 is a deficient number, since it is larger than the sum of its proper divisors (1674712663).

11646735401 is a wasteful number, since it uses less digits than its factorization.

11646735401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361671.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 11646735401 in words is "eleven billion, six hundred forty-six million, seven hundred thirty-five thousand, four hundred one".