20356470711 has 12 divisors (see below), whose sum is σ = 29413595640. Its totient is φ = 13566455280.

The previous prime is 20356470661. The next prime is 20356470737. The reversal of 20356470711 is 11707465302.

It is a happy number.

20356470711 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 647 + 0 + 7 + 1 + 1 = 666.

It is not a de Polignac number, because 20356470711 - 2¹³ = 20356462519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20356470011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348496 + ... + 402693.

It is an arithmetic number, because the mean of its divisors is an integer number (2451132970).

Almost surely, 2^20356470711 is an apocalyptic number.

20356470711 is a deficient number, since it is larger than the sum of its proper divisors (9057124929).

20356470711 is a wasteful number, since it uses less digits than its factorization.

20356470711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754206 (or 754203 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

It can be divided in two parts, 2035 and 6470711, that added together give a palindrome (6472746).

The spelling of 20356470711 in words is "twenty billion, three hundred fifty-six million, four hundred seventy thousand, seven hundred eleven".