11400153550 has 48 divisors (see below), whose sum is σ = 22640872320. Its totient is φ = 4260342240.

The previous prime is 11400153521. The next prime is 11400153571. The reversal of 11400153550 is 5535100411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65820 + ... + 164719.

It is an arithmetic number, because the mean of its divisors is an integer number (471684840).

Almost surely, 2^11400153550 is an apocalyptic number.

11400153550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11400153550 is a deficient number, since it is larger than the sum of its proper divisors (11240718770).

11400153550 is a wasteful number, since it uses less digits than its factorization.

11400153550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230617 (or 230612 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 11400153550 its reverse (5535100411), we get a palindrome (16935253961).

The spelling of 11400153550 in words is "eleven billion, four hundred million, one hundred fifty-three thousand, five hundred fifty".