20367260671 has 4 divisors (see below), whose sum is σ = 20502143344. Its totient is φ = 20232378000.

The previous prime is 20367260647. The next prime is 20367260681. The reversal of 20367260671 is 17606276302.

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 20367260671 - 2¹¹ = 20367258623 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 (20367260621) 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, 67441110 + ... + 67441411.

It is an arithmetic number, because the mean of its divisors is an integer number (5125535836).

Almost surely, 2^20367260671 is an apocalyptic number.

20367260671 is a deficient number, since it is larger than the sum of its proper divisors (134882673).

20367260671 is a wasteful number, since it uses less digits than its factorization.

20367260671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134882672.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 20367260671 in words is "twenty billion, three hundred sixty-seven million, two hundred sixty thousand, six hundred seventy-one".