40163451636 has 48 divisors (see below), whose sum is σ = 116839134720. Its totient is φ = 10432065120.

The previous prime is 40163451619. The next prime is 40163451689. The reversal of 40163451636 is 63615436104.

It is a super-3 number, since 3×40163451636³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 40163451594 and 40163451603.

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, 21732546 + ... + 21734393.

It is an arithmetic number, because the mean of its divisors is an integer number (2434148640).

Almost surely, 2^40163451636 is an apocalyptic number.

It is an amenable number.

40163451636 is an abundant number, since it is smaller than the sum of its proper divisors (76675683084).

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

40163451636 is a wasteful number, since it uses less digits than its factorization.

40163451636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43466964 (or 43466962 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 40163451636 in words is "forty billion, one hundred sixty-three million, four hundred fifty-one thousand, six hundred thirty-six".