130378939866 has 24 divisors (see below), whose sum is σ = 322843089504. Its totient is φ = 37251125640.

The previous prime is 130378939861. The next prime is 130378939891. The reversal of 130378939866 is 668939873031.

130378939866 is a `hidden beast` number, since 1 + 30 + 378 + 93 + 98 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (130378939861) 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, 517376620 + ... + 517376871.

It is an arithmetic number, because the mean of its divisors is an integer number (13451795396).

Almost surely, 2^130378939866 is an apocalyptic number.

130378939866 is an abundant number, since it is smaller than the sum of its proper divisors (192464149638).

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

130378939866 is a wasteful number, since it uses less digits than its factorization.

130378939866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034753506 (or 1034753503 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 130378939866 in words is "one hundred thirty billion, three hundred seventy-eight million, nine hundred thirty-nine thousand, eight hundred sixty-six".