30086661672 has 24 divisors (see below), whose sum is σ = 81484708890. Its totient is φ = 10028887200.

The previous prime is 30086661667. The next prime is 30086661679. The reversal of 30086661672 is 27616668003.

It can be written as a sum of positive squares in only one way, i.e., 18369465156 + 11717196516 = 135534^2 + 108246^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (30086661679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208935079 + ... + 208935222.

Almost surely, 2^30086661672 is an apocalyptic number.

It is an amenable number.

30086661672 is an abundant number, since it is smaller than the sum of its proper divisors (51398047218).

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

30086661672 is a wasteful number, since it uses less digits than its factorization.

30086661672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417870313 (or 417870306 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 30086661672 in words is "thirty billion, eighty-six million, six hundred sixty-one thousand, six hundred seventy-two".