40166320552 has 16 divisors (see below), whose sum is σ = 75706156800. Its totient is φ = 19978012080.

The previous prime is 40166320543. The next prime is 40166320561. The reversal of 40166320552 is 25502366104.

It is an interprime number because it is at equal distance from previous prime (40166320543) and next prime (40166320561).

It is a super-2 number, since 2×40166320552² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13141902 + ... + 13144957.

It is an arithmetic number, because the mean of its divisors is an integer number (4731634800).

Almost surely, 2^40166320552 is an apocalyptic number.

It is an amenable number.

40166320552 is a deficient number, since it is larger than the sum of its proper divisors (35539836248).

40166320552 is a wasteful number, since it uses less digits than its factorization.

40166320552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26287056 (or 26287052 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 40166320552 its reverse (25502366104), we get a palindrome (65668686656).

The spelling of 40166320552 in words is "forty billion, one hundred sixty-six million, three hundred twenty thousand, five hundred fifty-two".