11620435601 has 4 divisors (see below), whose sum is σ = 11621228400. Its totient is φ = 11619642804.

The previous prime is 11620435583. The next prime is 11620435637. The reversal of 11620435601 is 10653402611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11620435601 - 2¹⁰ = 11620434577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11620435201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373991 + ... + 403868.

It is an arithmetic number, because the mean of its divisors is an integer number (2905307100).

Almost surely, 2^11620435601 is an apocalyptic number.

It is an amenable number.

11620435601 is a deficient number, since it is larger than the sum of its proper divisors (792799).

11620435601 is an equidigital number, since it uses as much as digits as its factorization.

11620435601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792798.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 11620435601 in words is "eleven billion, six hundred twenty million, four hundred thirty-five thousand, six hundred one".