11155054621 has 8 divisors (see below), whose sum is σ = 11171489888. Its totient is φ = 11138634000.

The previous prime is 11155054619. The next prime is 11155054633. The reversal of 11155054621 is 12645055111.

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 11155054621 - 2¹ = 11155054619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155054721) 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, 3020386 + ... + 3024076.

It is an arithmetic number, because the mean of its divisors is an integer number (1396436236).

Almost surely, 2^11155054621 is an apocalyptic number.

It is an amenable number.

11155054621 is a deficient number, since it is larger than the sum of its proper divisors (16435267).

11155054621 is a wasteful number, since it uses less digits than its factorization.

11155054621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7323.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 11155054621 in words is "eleven billion, one hundred fifty-five million, fifty-four thousand, six hundred twenty-one".