2153510866 has 16 divisors (see below), whose sum is σ = 3496969728. Its totient is φ = 988722000.

The previous prime is 2153510837. The next prime is 2153510867. The reversal of 2153510866 is 6680153512.

It is not an unprimeable number, because it can be changed into a prime (2153510867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211860 + ... + 221791.

It is an arithmetic number, because the mean of its divisors is an integer number (218560608).

Almost surely, 2^2153510866 is an apocalyptic number.

2153510866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2153510866 is a deficient number, since it is larger than the sum of its proper divisors (1343458862).

2153510866 is a wasteful number, since it uses less digits than its factorization.

2153510866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433857.

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

The square root of 2153510866 is about 46405.9356763766. The cubic root of 2153510866 is about 1291.3650326365.

The spelling of 2153510866 in words is "two billion, one hundred fifty-three million, five hundred ten thousand, eight hundred sixty-six".