40166150665 has 16 divisors (see below), whose sum is σ = 51259485312. Its totient is φ = 30109506304.

The previous prime is 40166150599. The next prime is 40166150701. The reversal of 40166150665 is 56605166104.

It is a cyclic number.

It is not a de Polignac number, because 40166150665 - 2¹³ = 40166142473 is a prime.

It is a super-2 number, since 2×40166150665² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021549 + ... + 1060138.

It is an arithmetic number, because the mean of its divisors is an integer number (3203717832).

Almost surely, 2^40166150665 is an apocalyptic number.

It is an amenable number.

40166150665 is a deficient number, since it is larger than the sum of its proper divisors (11093334647).

40166150665 is a wasteful number, since it uses less digits than its factorization.

40166150665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081936.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 40166150665 in words is "forty billion, one hundred sixty-six million, one hundred fifty thousand, six hundred sixty-five".