11620640425 has 24 divisors (see below), whose sum is σ = 14515589792. Its totient is φ = 9228384000.

The previous prime is 11620640419. The next prime is 11620640429. The reversal of 11620640425 is 52404602611.

It is a happy number.

11620640425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11620640425 - 2¹¹ = 11620638377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11620640429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1991362 + ... + 1997188.

Almost surely, 2^11620640425 is an apocalyptic number.

It is an amenable number.

11620640425 is a deficient number, since it is larger than the sum of its proper divisors (2894949367).

11620640425 is a wasteful number, since it uses less digits than its factorization.

11620640425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409 (or 6404 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 11620640425 in words is "eleven billion, six hundred twenty million, six hundred forty thousand, four hundred twenty-five".