34206216520 has 32 divisors (see below), whose sum is σ = 87958843200. Its totient is φ = 11727845568.

The previous prime is 34206216493. The next prime is 34206216523. The reversal of 34206216520 is 2561260243.

It is a super-2 number, since 2×34206216520² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34206216523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61082250 + ... + 61082809.

It is an arithmetic number, because the mean of its divisors is an integer number (2748713850).

Almost surely, 2^34206216520 is an apocalyptic number.

It is an amenable number.

34206216520 is an abundant number, since it is smaller than the sum of its proper divisors (53752626680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34206216520 is a wasteful number, since it uses less digits than its factorization.

34206216520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122165077 (or 122165073 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 34206216520 its reverse (2561260243), we get a palindrome (36767476763).

The spelling of 34206216520 in words is "thirty-four billion, two hundred six million, two hundred sixteen thousand, five hundred twenty".