30006815542120 has 64 divisors (see below), whose sum is σ = 67604688011520. Its totient is φ = 11986851765504.

The previous prime is 30006815542061. The next prime is 30006815542127. The reversal of 30006815542120 is 2124551860003.

It is a self number, because there is not a number n which added to its sum of digits gives 30006815542120.

It is not an unprimeable number, because it can be changed into a prime (30006815542127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91840887 + ... + 92167033.

It is an arithmetic number, because the mean of its divisors is an integer number (1056323250180).

Almost surely, 2^{30006815542120} is an apocalyptic number.

It is an amenable number.

30006815542120 is an abundant number, since it is smaller than the sum of its proper divisors (37597872469400).

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

30006815542120 is a wasteful number, since it uses less digits than its factorization.

30006815542120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329194 (or 329190 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 30006815542120 in words is "thirty trillion, six billion, eight hundred fifteen million, five hundred forty-two thousand, one hundred twenty".