20506010507 has 8 divisors (see below), whose sum is σ = 20715910320. Its totient is φ = 20296245600.

The previous prime is 20506010467. The next prime is 20506010513. The reversal of 20506010507 is 70501060502.

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 20506010507 - 2⁶ = 20506010443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20506010207) 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, 287369 + ... + 351557.

It is an arithmetic number, because the mean of its divisors is an integer number (2589488790).

Almost surely, 2^20506010507 is an apocalyptic number.

20506010507 is a deficient number, since it is larger than the sum of its proper divisors (209899813).

20506010507 is a wasteful number, since it uses less digits than its factorization.

20506010507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67453.

The product of its (nonzero) digits is 2100, while the sum is 26.

The spelling of 20506010507 in words is "twenty billion, five hundred six million, ten thousand, five hundred seven".