20670430733 has 8 divisors (see below), whose sum is σ = 21819993600. Its totient is φ = 19527032448.

The previous prime is 20670430721. The next prime is 20670430741. The reversal of 20670430733 is 33703407602.

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

It is a cyclic number.

It is not a de Polignac number, because 20670430733 - 2¹⁶ = 20670365197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20670430693 and 20670430702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20670430783) 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, 1534253 + ... + 1547666.

It is an arithmetic number, because the mean of its divisors is an integer number (2727499200).

Almost surely, 2^20670430733 is an apocalyptic number.

It is an amenable number.

20670430733 is a deficient number, since it is larger than the sum of its proper divisors (1149562867).

20670430733 is a wasteful number, since it uses less digits than its factorization.

20670430733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082291.

The product of its (nonzero) digits is 63504, while the sum is 35.

The spelling of 20670430733 in words is "twenty billion, six hundred seventy million, four hundred thirty thousand, seven hundred thirty-three".