11005981154 has 32 divisors (see below), whose sum is σ = 19894533120. Its totient is φ = 4460917968.

The previous prime is 11005981153. The next prime is 11005981171. The reversal of 11005981154 is 45118950011.

It is a super-2 number, since 2×11005981154² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11005981153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120899 + ... + 191385.

It is an arithmetic number, because the mean of its divisors is an integer number (621704160).

Almost surely, 2^11005981154 is an apocalyptic number.

11005981154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11005981154 is a deficient number, since it is larger than the sum of its proper divisors (8888551966).

11005981154 is a wasteful number, since it uses less digits than its factorization.

11005981154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71102.

The product of its (nonzero) digits is 7200, while the sum is 35.

The spelling of 11005981154 in words is "eleven billion, five million, nine hundred eighty-one thousand, one hundred fifty-four".