2106513568 has 12 divisors (see below), whose sum is σ = 4147198650. Its totient is φ = 1053256768.

The previous prime is 2106513559. The next prime is 2106513587. The reversal of 2106513568 is 8653156012.

It can be written as a sum of positive squares in only one way, i.e., 1851408784 + 255104784 = 43028^2 + 15972^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32914243 + ... + 32914306.

Almost surely, 2^2106513568 is an apocalyptic number.

It is an amenable number.

2106513568 is a deficient number, since it is larger than the sum of its proper divisors (2040685082).

2106513568 is an equidigital number, since it uses as much as digits as its factorization.

2106513568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65828559 (or 65828551 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 2106513568 is about 45896.7707796529. The cubic root of 2106513568 is about 1281.9017888603.

The spelling of 2106513568 in words is "two billion, one hundred six million, five hundred thirteen thousand, five hundred sixty-eight".