20672710337 has 16 divisors (see below), whose sum is σ = 21486136320. Its totient is φ = 19873729728.

The previous prime is 20672710309. The next prime is 20672710343. The reversal of 20672710337 is 73301727602.

It is a cyclic number.

It is not a de Polignac number, because 20672710337 - 2⁶ = 20672710273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20672710337.

It is not an unprimeable number, because it can be changed into a prime (20672710397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1473128 + ... + 1487094.

It is an arithmetic number, because the mean of its divisors is an integer number (1342883520).

Almost surely, 2^20672710337 is an apocalyptic number.

It is an amenable number.

20672710337 is a deficient number, since it is larger than the sum of its proper divisors (813425983).

20672710337 is a wasteful number, since it uses less digits than its factorization.

20672710337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480.

The product of its (nonzero) digits is 74088, while the sum is 38.

The spelling of 20672710337 in words is "twenty billion, six hundred seventy-two million, seven hundred ten thousand, three hundred thirty-seven".