11230620661 has 16 divisors (see below), whose sum is σ = 12250586880. Its totient is φ = 10233336960.

The previous prime is 11230620617. The next prime is 11230620671. The reversal of 11230620661 is 16602603211.

It is a cyclic number.

It is not a de Polignac number, because 11230620661 - 2¹¹ = 11230618613 is a prime.

It is a super-2 number, since 2×11230620661² (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 (11230620671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722376 + ... + 737758.

It is an arithmetic number, because the mean of its divisors is an integer number (765661680).

Almost surely, 2^11230620661 is an apocalyptic number.

It is an amenable number.

11230620661 is a deficient number, since it is larger than the sum of its proper divisors (1019966219).

11230620661 is a wasteful number, since it uses less digits than its factorization.

11230620661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16116.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 11230620661 in words is "eleven billion, two hundred thirty million, six hundred twenty thousand, six hundred sixty-one".