41664365646 has 32 divisors (see below), whose sum is σ = 88484762880. Its totient is φ = 13033493376.

The previous prime is 41664365641. The next prime is 41664365761. The reversal of 41664365646 is 64656346614.

It is a happy number.

41664365646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41664365641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553186 + ... + 623973.

It is an arithmetic number, because the mean of its divisors is an integer number (2765148840).

Almost surely, 2^41664365646 is an apocalyptic number.

41664365646 is an abundant number, since it is smaller than the sum of its proper divisors (46820397234).

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

41664365646 is a wasteful number, since it uses less digits than its factorization.

41664365646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177528.

The product of its digits is 7464960, while the sum is 51.

The spelling of 41664365646 in words is "forty-one billion, six hundred sixty-four million, three hundred sixty-five thousand, six hundred forty-six".