20520612602 has 8 divisors (see below), whose sum is σ = 35178193056. Its totient is φ = 8794548252.

The previous prime is 20520612583. The next prime is 20520612641. The reversal of 20520612602 is 20621602502.

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

It is a super-2 number, since 2×20520612602² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732879008 + ... + 732879035.

It is an arithmetic number, because the mean of its divisors is an integer number (4397274132).

Almost surely, 2^20520612602 is an apocalyptic number.

20520612602 is a deficient number, since it is larger than the sum of its proper divisors (14657580454).

20520612602 is a wasteful number, since it uses less digits than its factorization.

20520612602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465758052.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 20520612602 in words is "twenty billion, five hundred twenty million, six hundred twelve thousand, six hundred two".