20572345036 has 6 divisors (see below), whose sum is σ = 36001603820. Its totient is φ = 10286172516.

The previous prime is 20572344979. The next prime is 20572345081. The reversal of 20572345036 is 63054327502.

It is a junction number, because it is equal to n+sod(n) for n = 20572344986 and 20572345004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571543126 + ... + 2571543133.

Almost surely, 2^20572345036 is an apocalyptic number.

It is an amenable number.

20572345036 is a deficient number, since it is larger than the sum of its proper divisors (15429258784).

20572345036 is a wasteful number, since it uses less digits than its factorization.

20572345036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143086263 (or 5143086261 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 20572345036 in words is "twenty billion, five hundred seventy-two million, three hundred forty-five thousand, thirty-six".