40165217534 has 24 divisors (see below), whose sum is σ = 65382066120. Its totient is φ = 18396078480.

The previous prime is 40165217513. The next prime is 40165217551. The reversal of 40165217534 is 43571256104.

It is a super-2 number, since 2×40165217534² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 401177 + ... + 491195.

It is an arithmetic number, because the mean of its divisors is an integer number (2724252755).

Almost surely, 2^40165217534 is an apocalyptic number.

40165217534 is a deficient number, since it is larger than the sum of its proper divisors (25216848586).

40165217534 is a wasteful number, since it uses less digits than its factorization.

40165217534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90296 (or 90165 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 40165217534 in words is "forty billion, one hundred sixty-five million, two hundred seventeen thousand, five hundred thirty-four".