30620643355356 has 24 divisors (see below), whose sum is σ = 71706103460880. Its totient is φ = 10170033171072.

The previous prime is 30620643355349. The next prime is 30620643355451. The reversal of 30620643355356 is 65355334602603.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30620643355299 and 30620643355308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4605989961 + ... + 4605996608.

It is an arithmetic number, because the mean of its divisors is an integer number (2987754310870).

Almost surely, 2^{30620643355356} is an apocalyptic number.

It is an amenable number.

30620643355356 is an abundant number, since it is smaller than the sum of its proper divisors (41085460105524).

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

30620643355356 is a wasteful number, since it uses less digits than its factorization.

30620643355356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211986853 (or 9211986851 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 51.

Adding to 30620643355356 its reverse (65355334602603), we get a palindrome (95975977957959).

The spelling of 30620643355356 in words is "thirty trillion, six hundred twenty billion, six hundred forty-three million, three hundred fifty-five thousand, three hundred fifty-six".