20968015006 has 4 divisors (see below), whose sum is σ = 31452022512. Its totient is φ = 10484007502.

The previous prime is 20968015001. The next prime is 20968015049. The reversal of 20968015006 is 60051086902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60051086902 = 2 ⋅30025543451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20968015001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5242003750 + ... + 5242003753.

It is an arithmetic number, because the mean of its divisors is an integer number (7863005628).

Almost surely, 2^20968015006 is an apocalyptic number.

20968015006 is a deficient number, since it is larger than the sum of its proper divisors (10484007506).

20968015006 is a wasteful number, since it uses less digits than its factorization.

20968015006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10484007505.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 20968015006 in words is "twenty billion, nine hundred sixty-eight million, fifteen thousand, six".