2166511150 has 48 divisors (see below), whose sum is σ = 4075051680. Its totient is φ = 856908800.

The previous prime is 2166511117. The next prime is 2166511153. The reversal of 2166511150 is 511156612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166511153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2458710 + ... + 2459590.

It is an arithmetic number, because the mean of its divisors is an integer number (84896910).

Almost surely, 2^2166511150 is an apocalyptic number.

2166511150 is a deficient number, since it is larger than the sum of its proper divisors (1908540530).

2166511150 is a wasteful number, since it uses less digits than its factorization.

2166511150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1384 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 2166511150 is about 46545.7962656135. The cubic root of 2166511150 is about 1293.9583858440.

Adding to 2166511150 its reverse (511156612), we get a palindrome (2677667762).

The spelling of 2166511150 in words is "two billion, one hundred sixty-six million, five hundred eleven thousand, one hundred fifty".