11005541504 has 16 divisors (see below), whose sum is σ = 21925102470. Its totient is φ = 5502770688.

The previous prime is 11005541497. The next prime is 11005541537. The reversal of 11005541504 is 40514550011.

It can be written as a sum of positive squares in only one way, i.e., 10120360000 + 885181504 = 100600^2 + 29752^2 .

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

It is a super-2 number, since 2×11005541504² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42990269 + ... + 42990524.

Almost surely, 2^11005541504 is an apocalyptic number.

It is an amenable number.

11005541504 is a deficient number, since it is larger than the sum of its proper divisors (10919560966).

11005541504 is an frugal number, since it uses more digits than its factorization.

11005541504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85980807 (or 85980795 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 11005541504 in words is "eleven billion, five million, five hundred forty-one thousand, five hundred four".