40166042542078 has 8 divisors (see below), whose sum is σ = 60298086651480. Its totient is φ = 20066680324920.

The previous prime is 40166042542063. The next prime is 40166042542091. The reversal of 40166042542078 is 87024524066104.

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

It is a super-2 number, since 2×40166042542078² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 8170469988 + ... + 8170474903.

It is an arithmetic number, because the mean of its divisors is an integer number (7537260831435).

Almost surely, 2^{40166042542078} is an apocalyptic number.

40166042542078 is a deficient number, since it is larger than the sum of its proper divisors (20132044109402).

40166042542078 is a wasteful number, since it uses less digits than its factorization.

40166042542078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16340946122.

The product of its (nonzero) digits is 2580480, while the sum is 49.

The spelling of 40166042542078 in words is "forty trillion, one hundred sixty-six billion, forty-two million, five hundred forty-two thousand, seventy-eight".