136378666664298 has 48 divisors (see below), whose sum is σ = 295661189131776. Its totient is φ = 45432776996640.

The previous prime is 136378666664293. The next prime is 136378666664323. The reversal of 136378666664298 is 892466666873631.

It is a super-2 number, since 2×136378666664298² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136378666664293) 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, 678275436 + ... + 678476472.

It is an arithmetic number, because the mean of its divisors is an integer number (6159608106912).

Almost surely, 2^{136378666664298} is an apocalyptic number.

136378666664298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

136378666664298 is an abundant number, since it is smaller than the sum of its proper divisors (159282522467478).

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

136378666664298 is a wasteful number, since it uses less digits than its factorization.

136378666664298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223059 (or 223056 counting only the distinct ones).

The product of its digits is 13544423424, while the sum is 81.

The spelling of 136378666664298 in words is "one hundred thirty-six trillion, three hundred seventy-eight billion, six hundred sixty-six million, six hundred sixty-four thousand, two hundred ninety-eight".