40641166000 has 40 divisors (see below), whose sum is σ = 98270344224. Its totient is φ = 16256465600.

The previous prime is 40641165953. The next prime is 40641166001. The reversal of 40641166000 is 66114604.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 40641166000.

It is not an unprimeable number, because it can be changed into a prime (40641166001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10158292 + ... + 10162291.

Almost surely, 2^40641166000 is an apocalyptic number.

40641166000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40641166000 is an abundant number, since it is smaller than the sum of its proper divisors (57629178224).

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

40641166000 is a wasteful number, since it uses less digits than its factorization.

40641166000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20320606 (or 20320590 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 40641166000 in words is "forty billion, six hundred forty-one million, one hundred sixty-six thousand".