1641340855471 has 4 divisors (see below), whose sum is σ = 1641351451744. Its totient is φ = 1641330259200.

The previous prime is 1641340855463. The next prime is 1641340855499. The reversal of 1641340855471 is 1745580431461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1641340855471 - 2³ = 1641340855463 is a prime.

It is a super-3 number, since 3×1641340855471³ (a number of 38 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 (1641340805471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5062290 + ... + 5376751.

It is an arithmetic number, because the mean of its divisors is an integer number (410337862936).

Almost surely, 2^{1641340855471} is an apocalyptic number.

1641340855471 is a deficient number, since it is larger than the sum of its proper divisors (10596273).

1641340855471 is a wasteful number, since it uses less digits than its factorization.

1641340855471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596272.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 1641340855471 in words is "one trillion, six hundred forty-one billion, three hundred forty million, eight hundred fifty-five thousand, four hundred seventy-one".