130445664261 has 24 divisors (see below), whose sum is σ = 191200289280. Its totient is φ = 79048168320.

The previous prime is 130445664227. The next prime is 130445664299. The reversal of 130445664261 is 162466544031.

It is not a de Polignac number, because 130445664261 - 2⁶ = 130445664197 is a prime.

It is a super-2 number, since 2×130445664261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130445664061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3815901 + ... + 3849933.

It is an arithmetic number, because the mean of its divisors is an integer number (7966678720).

Almost surely, 2^130445664261 is an apocalyptic number.

130445664261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130445664261 is a deficient number, since it is larger than the sum of its proper divisors (60754625019).

130445664261 is a wasteful number, since it uses less digits than its factorization.

130445664261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44617 (or 44606 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 130445664261 in words is "one hundred thirty billion, four hundred forty-five million, six hundred sixty-four thousand, two hundred sixty-one".