11622550681 has 8 divisors (see below), whose sum is σ = 13283766144. Its totient is φ = 9961548000.

The previous prime is 11622550663. The next prime is 11622550787. The reversal of 11622550681 is 18605522611.

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 11622550681 - 2⁵ = 11622550649 is a prime.

It is a super-2 number, since 2×11622550681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11622550681.

It is not an unprimeable number, because it can be changed into a prime (11622550981) 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, 89316 + ... + 176698.

It is an arithmetic number, because the mean of its divisors is an integer number (1660470768).

Almost surely, 2^11622550681 is an apocalyptic number.

It is an amenable number.

11622550681 is a deficient number, since it is larger than the sum of its proper divisors (1661215463).

11622550681 is an equidigital number, since it uses as much as digits as its factorization.

11622550681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106391.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 11622550681 in words is "eleven billion, six hundred twenty-two million, five hundred fifty thousand, six hundred eighty-one".