130665420 has 48 divisors (see below), whose sum is σ = 406516320. Its totient is φ = 34843968.

The previous prime is 130665419. The next prime is 130665427. The reversal of 130665420 is 24566031.

130665420 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 654 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (130665427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120447 + ... + 121526.

It is an arithmetic number, because the mean of its divisors is an integer number (8469090).

Almost surely, 2^130665420 is an apocalyptic number.

130665420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130665420 is an abundant number, since it is smaller than the sum of its proper divisors (275850900).

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

130665420 is a wasteful number, since it uses less digits than its factorization.

130665420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241991 (or 241983 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 130665420 is about 11430.8976025507. The cubic root of 130665420 is about 507.4425602523.

The spelling of 130665420 in words is "one hundred thirty million, six hundred sixty-five thousand, four hundred twenty".