30620606645 has 16 divisors (see below), whose sum is σ = 37256274432. Its totient is φ = 24155602560.

The previous prime is 30620606617. The next prime is 30620606677. The reversal of 30620606645 is 54660602603.

It is not a de Polignac number, because 30620606645 - 2¹² = 30620602549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30620606599 and 30620606608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2955344 + ... + 2965686.

It is an arithmetic number, because the mean of its divisors is an integer number (2328517152).

Almost surely, 2^30620606645 is an apocalyptic number.

It is an amenable number.

30620606645 is a deficient number, since it is larger than the sum of its proper divisors (6635667787).

30620606645 is a wasteful number, since it uses less digits than its factorization.

30620606645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18532.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 30620606645 in words is "thirty billion, six hundred twenty million, six hundred six thousand, six hundred forty-five".