40145865167398 has 8 divisors (see below), whose sum is σ = 60219493546680. Its totient is φ = 20072700651840.

The previous prime is 40145865167383. The next prime is 40145865167399. The reversal of 40145865167398 is 89376156854104.

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

It is a super-2 number, since 2×40145865167398² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145865167399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115749483 + ... + 116095798.

It is an arithmetic number, because the mean of its divisors is an integer number (7527436693335).

Almost surely, 2^{40145865167398} is an apocalyptic number.

40145865167398 is a deficient number, since it is larger than the sum of its proper divisors (20073628379282).

40145865167398 is a wasteful number, since it uses less digits than its factorization.

40145865167398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231931862.

The product of its (nonzero) digits is 174182400, while the sum is 67.

The spelling of 40145865167398 in words is "forty trillion, one hundred forty-five billion, eight hundred sixty-five million, one hundred sixty-seven thousand, three hundred ninety-eight".