40165784356412 has 48 divisors (see below), whose sum is σ = 87436170656352. Its totient is φ = 15861436846080.

The previous prime is 40165784356267. The next prime is 40165784356457. The reversal of 40165784356412 is 21465348756104.

It is a super-2 number, since 2×40165784356412² (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 15 ways as a sum of consecutive naturals, for example, 2065281533 + ... + 2065300980.

It is an arithmetic number, because the mean of its divisors is an integer number (1821586888674).

Almost surely, 2^{40165784356412} is an apocalyptic number.

It is an amenable number.

40165784356412 is an abundant number, since it is smaller than the sum of its proper divisors (47270386299940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40165784356412 is a wasteful number, since it uses less digits than its factorization.

40165784356412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130582558 (or 4130582556 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 40165784356412 in words is "forty trillion, one hundred sixty-five billion, seven hundred eighty-four million, three hundred fifty-six thousand, four hundred twelve".