130188635642 has 16 divisors (see below), whose sum is σ = 217556607240. Its totient is φ = 58015094592.

The previous prime is 130188635639. The next prime is 130188635699. The reversal of 130188635642 is 246536881031.

It can be written as a sum of positive squares in 4 ways, for example, as 87285384481 + 42903251161 = 295441^2 + 207131^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86331233 + ... + 86332740.

Almost surely, 2^130188635642 is an apocalyptic number.

130188635642 is a deficient number, since it is larger than the sum of its proper divisors (87367971598).

130188635642 is a wasteful number, since it uses less digits than its factorization.

130188635642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172664017.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 130188635642 in words is "one hundred thirty billion, one hundred eighty-eight million, six hundred thirty-five thousand, six hundred forty-two".