30187815606020 has 24 divisors (see below), whose sum is σ = 65439393831168. Its totient is φ = 11685606040800.

The previous prime is 30187815606019. The next prime is 30187815606029. The reversal of 30187815606020 is 2060651878103.

It is a super-2 number, since 2×30187815606020² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30187815606029) 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, 24345011966 + ... + 24345013205.

It is an arithmetic number, because the mean of its divisors is an integer number (2726641409632).

Almost surely, 2^{30187815606020} is an apocalyptic number.

It is an amenable number.

30187815606020 is an abundant number, since it is smaller than the sum of its proper divisors (35251578225148).

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

30187815606020 is a wasteful number, since it uses less digits than its factorization.

30187815606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48690025211 (or 48690025209 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 30187815606020 in words is "thirty trillion, one hundred eighty-seven billion, eight hundred fifteen million, six hundred six thousand, twenty".