20535551702 has 16 divisors (see below), whose sum is σ = 32145645312. Its totient is φ = 9820421160.

The previous prime is 20535551689. The next prime is 20535551719. The reversal of 20535551702 is 20715553502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956813 + ... + 978039.

It is an arithmetic number, because the mean of its divisors is an integer number (2009102832).

Almost surely, 2^20535551702 is an apocalyptic number.

20535551702 is a deficient number, since it is larger than the sum of its proper divisors (11610093610).

20535551702 is a wasteful number, since it uses less digits than its factorization.

20535551702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42283.

The product of its (nonzero) digits is 52500, while the sum is 35.

The spelling of 20535551702 in words is "twenty billion, five hundred thirty-five million, five hundred fifty-one thousand, seven hundred two".