20526702406 has 48 divisors (see below), whose sum is σ = 37669072896. Its totient is φ = 8348299344.

The previous prime is 20526702401. The next prime is 20526702409. The reversal of 20526702406 is 60420762502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20526702401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250405 + ... + 322111.

It is an arithmetic number, because the mean of its divisors is an integer number (784772352).

Almost surely, 2^20526702406 is an apocalyptic number.

20526702406 is a deficient number, since it is larger than the sum of its proper divisors (17142370490).

20526702406 is a wasteful number, since it uses less digits than its factorization.

20526702406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71873 (or 71866 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 20526702406 in words is "twenty billion, five hundred twenty-six million, seven hundred two thousand, four hundred six".