20450376671 has 8 divisors (see below), whose sum is σ = 21009768624. Its totient is φ = 19891336320.

The previous prime is 20450376637. The next prime is 20450376673. The reversal of 20450376671 is 17667305402.

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-20450376671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450376673) 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, 32231 + ... + 204791.

It is an arithmetic number, because the mean of its divisors is an integer number (2626221078).

Almost surely, 2^20450376671 is an apocalyptic number.

20450376671 is a deficient number, since it is larger than the sum of its proper divisors (559391953).

20450376671 is a wasteful number, since it uses less digits than its factorization.

20450376671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175801.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 20450376671 in words is "twenty billion, four hundred fifty million, three hundred seventy-six thousand, six hundred seventy-one".