11000000055551 has 8 divisors (see below), whose sum is σ = 11888311041264. Its totient is φ = 10117711517760.

The previous prime is 11000000055529. The next prime is 11000000055571. The reversal of 11000000055551 is 15555000000011.

It is a happy number.

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 11000000055551 - 2²² = 10999995861247 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 (11000000055511) 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, 1505608181 + ... + 1505615486.

It is an arithmetic number, because the mean of its divisors is an integer number (1486038880158).

Almost surely, 2^{11000000055551} is an apocalyptic number.

11000000055551 is a deficient number, since it is larger than the sum of its proper divisors (888310985713).

11000000055551 is a wasteful number, since it uses less digits than its factorization.

11000000055551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011223961.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 11000000055551 its reverse (15555000000011), we get a palindrome (26555000055562).

The spelling of 11000000055551 in words is "eleven trillion, fifty-five thousand, five hundred fifty-one".