11550405770 has 16 divisors (see below), whose sum is σ = 20793691008. Its totient is φ = 4619504400.

The previous prime is 11550405707. The next prime is 11550405787. The reversal of 11550405770 is 7750405511.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11550405770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5054 + ... + 152073.

It is an arithmetic number, because the mean of its divisors is an integer number (1299605688).

Almost surely, 2^11550405770 is an apocalyptic number.

11550405770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11550405770 is a deficient number, since it is larger than the sum of its proper divisors (9243285238).

11550405770 is a wasteful number, since it uses less digits than its factorization.

11550405770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164485.

The product of its (nonzero) digits is 24500, while the sum is 35.

The spelling of 11550405770 in words is "eleven billion, five hundred fifty million, four hundred five thousand, seven hundred seventy".