40166145663 has 8 divisors (see below), whose sum is σ = 61205555328. Its totient is φ = 22952083224.

The previous prime is 40166145661. The next prime is 40166145683. The reversal of 40166145663 is 36654166104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40166145663 - 2¹ = 40166145661 is a prime.

It is a super-2 number, since 2×40166145663² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40166145661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956336781 + ... + 956336822.

It is an arithmetic number, because the mean of its divisors is an integer number (7650694416).

Almost surely, 2^40166145663 is an apocalyptic number.

40166145663 is a deficient number, since it is larger than the sum of its proper divisors (21039409665).

40166145663 is a wasteful number, since it uses less digits than its factorization.

40166145663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912673613.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 40166145663 in words is "forty billion, one hundred sixty-six million, one hundred forty-five thousand, six hundred sixty-three".