130665550 has 24 divisors (see below), whose sum is σ = 244683000. Its totient is φ = 51912480.

The previous prime is 130665541. The next prime is 130665551. The reversal of 130665550 is 55566031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130665551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1320 + ... + 16219.

It is an arithmetic number, because the mean of its divisors is an integer number (10195125).

Almost surely, 2^130665550 is an apocalyptic number.

130665550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130665550 is a deficient number, since it is larger than the sum of its proper divisors (114017450).

130665550 is a wasteful number, since it uses less digits than its factorization.

130665550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700 (or 17695 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 130665550 is about 11430.9032888919. The cubic root of 130665550 is about 507.4427285384.

The spelling of 130665550 in words is "one hundred thirty million, six hundred sixty-five thousand, five hundred fifty".