20602050547 has 16 divisors (see below), whose sum is σ = 22824369792. Its totient is φ = 18476720640.

The previous prime is 20602050529. The next prime is 20602050577. The reversal of 20602050547 is 74505020602.

It is a cyclic number.

It is not a de Polignac number, because 20602050547 - 2⁷ = 20602050419 is a prime.

It is a super-2 number, since 2×20602050547² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20602050577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39354 + ... + 206767.

It is an arithmetic number, because the mean of its divisors is an integer number (1426523112).

Almost surely, 2^20602050547 is an apocalyptic number.

20602050547 is a deficient number, since it is larger than the sum of its proper divisors (2222319245).

20602050547 is a wasteful number, since it uses less digits than its factorization.

20602050547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246318.

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 20602050547 in words is "twenty billion, six hundred two million, fifty thousand, five hundred forty-seven".