11149412550 has 48 divisors (see below), whose sum is σ = 27868311552. Its totient is φ = 2949760800.

The previous prime is 11149412543. The next prime is 11149412551. The reversal of 11149412550 is 5521494111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11149412551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273586 + ... + 311685.

It is an arithmetic number, because the mean of its divisors is an integer number (580589824).

Almost surely, 2^11149412550 is an apocalyptic number.

11149412550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11149412550 is an abundant number, since it is smaller than the sum of its proper divisors (16718899002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11149412550 is a wasteful number, since it uses less digits than its factorization.

11149412550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585413 (or 585408 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 11149412550 in words is "eleven billion, one hundred forty-nine million, four hundred twelve thousand, five hundred fifty".