30387171165 has 64 divisors (see below), whose sum is σ = 54731980800. Its totient is φ = 14284258560.

The previous prime is 30387171131. The next prime is 30387171253. The reversal of 30387171165 is 56117178303.

It is not a de Polignac number, because 30387171165 - 2⁷ = 30387171037 is a prime.

It is a super-2 number, since 2×30387171165² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2680860 + ... + 2692170.

It is an arithmetic number, because the mean of its divisors is an integer number (855187200).

Almost surely, 2^30387171165 is an apocalyptic number.

It is an amenable number.

30387171165 is a deficient number, since it is larger than the sum of its proper divisors (24344809635).

30387171165 is a wasteful number, since it uses less digits than its factorization.

30387171165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11954.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 30387171165 in words is "thirty billion, three hundred eighty-seven million, one hundred seventy-one thousand, one hundred sixty-five".