20041602665471 has 8 divisors (see below), whose sum is σ = 20048195336400. Its totient is φ = 20035010344960.

The previous prime is 20041602665437. The next prime is 20041602665473. The reversal of 20041602665471 is 17456620614002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20041602665471 is a prime.

It is a super-3 number, since 3×20041602665471³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041602665473) 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, 163022936 + ... + 163145826.

It is an arithmetic number, because the mean of its divisors is an integer number (2506024417050).

Almost surely, 2^{20041602665471} is an apocalyptic number.

20041602665471 is a deficient number, since it is larger than the sum of its proper divisors (6592670929).

20041602665471 is a wasteful number, since it uses less digits than its factorization.

20041602665471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175209.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 20041602665471 in words is "twenty trillion, forty-one billion, six hundred two million, six hundred sixty-five thousand, four hundred seventy-one".