11146890368 has 16 divisors (see below), whose sum is σ = 22206695910. Its totient is φ = 5573445120.

The previous prime is 11146890353. The next prime is 11146890371. The reversal of 11146890368 is 86309864111.

It can be written as a sum of positive squares in only one way, i.e., 8717583424 + 2429306944 = 93368^2 + 49288^2 .

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

It is a super-2 number, since 2×11146890368² (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, 43542413 + ... + 43542668.

Almost surely, 2^11146890368 is an apocalyptic number.

It is an amenable number.

11146890368 is a deficient number, since it is larger than the sum of its proper divisors (11059805542).

11146890368 is an frugal number, since it uses more digits than its factorization.

11146890368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87085095 (or 87085083 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 11146890368 in words is "eleven billion, one hundred forty-six million, eight hundred ninety thousand, three hundred sixty-eight".