11150605621 has 4 divisors (see below), whose sum is σ = 11258864032. Its totient is φ = 11042347212.

The previous prime is 11150605619. The next prime is 11150605633. The reversal of 11150605621 is 12650605111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12650605111 = 1907 ⋅6633773.

It is a cyclic number.

It is not a de Polignac number, because 11150605621 - 2¹ = 11150605619 is a prime.

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 11150605621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11150605691) 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, 54129051 + ... + 54129256.

It is an arithmetic number, because the mean of its divisors is an integer number (2814716008).

Almost surely, 2^11150605621 is an apocalyptic number.

It is an amenable number.

11150605621 is a deficient number, since it is larger than the sum of its proper divisors (108258411).

11150605621 is a wasteful number, since it uses less digits than its factorization.

11150605621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108258410.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 11150605621 in words is "eleven billion, one hundred fifty million, six hundred five thousand, six hundred twenty-one".