11643525061 has 8 divisors (see below), whose sum is σ = 13336007360. Its totient is φ = 9958323168.

The previous prime is 11643525053. The next prime is 11643525067. The reversal of 11643525061 is 16052534611.

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

It is a cyclic number.

It is not a de Polignac number, because 11643525061 - 2³ = 11643525053 is a prime.

It is a super-2 number, since 2×11643525061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643525067) 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, 1816671 + ... + 1823068.

It is an arithmetic number, because the mean of its divisors is an integer number (1667000920).

Almost surely, 2^11643525061 is an apocalyptic number.

It is an amenable number.

11643525061 is a deficient number, since it is larger than the sum of its proper divisors (1692482299).

11643525061 is an equidigital number, since it uses as much as digits as its factorization.

11643525061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640203.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 11643525061 in words is "eleven billion, six hundred forty-three million, five hundred twenty-five thousand, sixty-one".