30105511540 has 24 divisors (see below), whose sum is σ = 68084772840. Its totient is φ = 11115881088.

The previous prime is 30105511493. The next prime is 30105511567. The reversal of 30105511540 is 4511550103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 337530384 + 29767981156 = 18372^2 + 172534^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57894955 + ... + 57895474.

It is an arithmetic number, because the mean of its divisors is an integer number (2836865535).

Almost surely, 2^30105511540 is an apocalyptic number.

It is an amenable number.

30105511540 is an abundant number, since it is smaller than the sum of its proper divisors (37979261300).

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

30105511540 is a wasteful number, since it uses less digits than its factorization.

30105511540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115790451 (or 115790449 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 30105511540 in words is "thirty billion, one hundred five million, five hundred eleven thousand, five hundred forty".