11235555778 has 8 divisors (see below), whose sum is σ = 16860774672. Its totient is φ = 5615297556.

The previous prime is 11235555769. The next prime is 11235555781. The reversal of 11235555778 is 87755553211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1234500 + ... + 1243567.

It is an arithmetic number, because the mean of its divisors is an integer number (2107596834).

Almost surely, 2^11235555778 is an apocalyptic number.

11235555778 is a deficient number, since it is larger than the sum of its proper divisors (5625218894).

11235555778 is a wasteful number, since it uses less digits than its factorization.

11235555778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480336.

The product of its digits is 1470000, while the sum is 49.

The spelling of 11235555778 in words is "eleven billion, two hundred thirty-five million, five hundred fifty-five thousand, seven hundred seventy-eight".