20356461205 has 32 divisors (see below), whose sum is σ = 25947936000. Its totient is φ = 15287864832.

The previous prime is 20356461133. The next prime is 20356461217. The reversal of 20356461205 is 50216465302.

It is a cyclic number.

It is not a de Polignac number, because 20356461205 - 2⁹ = 20356460693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6892009 + ... + 6894961.

It is an arithmetic number, because the mean of its divisors is an integer number (810873000).

Almost surely, 2^20356461205 is an apocalyptic number.

It is an amenable number.

20356461205 is a deficient number, since it is larger than the sum of its proper divisors (5591474795).

20356461205 is a wasteful number, since it uses less digits than its factorization.

20356461205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 20356461205 in words is "twenty billion, three hundred fifty-six million, four hundred sixty-one thousand, two hundred five".