41644146715665 has 64 divisors (see below), whose sum is σ = 72939724058880. Its totient is φ = 20163613916160.

The previous prime is 41644146715657. The next prime is 41644146715687. The reversal of 41644146715665 is 56651764144614.

It is a happy number.

It is not a de Polignac number, because 41644146715665 - 2³ = 41644146715657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41644146715599 and 41644146715608.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121788706 + ... + 122130164.

It is an arithmetic number, because the mean of its divisors is an integer number (1139683188420).

Almost surely, 2^{41644146715665} is an apocalyptic number.

It is an amenable number.

41644146715665 is a deficient number, since it is larger than the sum of its proper divisors (31295577343215).

41644146715665 is a wasteful number, since it uses less digits than its factorization.

41644146715665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351794.

The product of its digits is 58060800, while the sum is 60.

The spelling of 41644146715665 in words is "forty-one trillion, six hundred forty-four billion, one hundred forty-six million, seven hundred fifteen thousand, six hundred sixty-five".