40166102212 has 12 divisors (see below), whose sum is σ = 71442985516. Its totient is φ = 19753820640.

The previous prime is 40166102131. The next prime is 40166102213. The reversal of 40166102212 is 21220166104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 535644736 + 39630457476 = 23144^2 + 199074^2 .

It is a super-2 number, since 2×40166102212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40166102213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82307343 + ... + 82307830.

Almost surely, 2^40166102212 is an apocalyptic number.

It is an amenable number.

40166102212 is a deficient number, since it is larger than the sum of its proper divisors (31276883304).

40166102212 is a wasteful number, since it uses less digits than its factorization.

40166102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164615238 (or 164615236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 40166102212 its reverse (21220166104), we get a palindrome (61386268316).

The spelling of 40166102212 in words is "forty billion, one hundred sixty-six million, one hundred two thousand, two hundred twelve".