21106536026 has 8 divisors (see below), whose sum is σ = 31660554240. Its totient is φ = 10553017948.

The previous prime is 21106535999. The next prime is 21106536029. The reversal of 21106536026 is 62063560112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21106535983 and 21106536001.

It is not an unprimeable number, because it can be changed into a prime (21106536029) 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, 9365 + ... + 205671.

It is an arithmetic number, because the mean of its divisors is an integer number (3957569280).

Almost surely, 2^21106536026 is an apocalyptic number.

21106536026 is a deficient number, since it is larger than the sum of its proper divisors (10554018214).

21106536026 is a wasteful number, since it uses less digits than its factorization.

21106536026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250068.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 21106536026 in words is "twenty-one billion, one hundred six million, five hundred thirty-six thousand, twenty-six".