11000021757056 has 16 divisors (see below), whose sum is σ = 21914105844390. Its totient is φ = 5500010878464.

The previous prime is 11000021757019. The next prime is 11000021757061. The reversal of 11000021757056 is 65075712000011.

It can be written as a sum of positive squares in only one way, i.e., 10997288558656 + 2733198400 = 3316216^2 + 52280^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42968834861 + ... + 42968835116.

Almost surely, 2^{11000021757056} is an apocalyptic number.

11000021757056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11000021757056 is a deficient number, since it is larger than the sum of its proper divisors (10914084087334).

11000021757056 is an frugal number, since it uses more digits than its factorization.

11000021757056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85937669991 (or 85937669979 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

Adding to 11000021757056 its reverse (65075712000011), we get a palindrome (76075733757067).

The spelling of 11000021757056 in words is "eleven trillion, twenty-one million, seven hundred fifty-seven thousand, fifty-six".