5665667190978 has 32 divisors (see below), whose sum is σ = 11610672272640. Its totient is φ = 1842022938240.

The previous prime is 5665667190977. The next prime is 5665667190979. The reversal of 5665667190978 is 8790917665665.

It is an interprime number because it is at equal distance from previous prime (5665667190977) and next prime (5665667190979).

It is a super-2 number, since 2×5665667190978² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5665667190977) 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, 1974325 + ... + 3902472.

It is an arithmetic number, because the mean of its divisors is an integer number (362833508520).

Almost surely, 2^{5665667190978} is an apocalyptic number.

5665667190978 is an abundant number, since it is smaller than the sum of its proper divisors (5945005081662).

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

5665667190978 is a wasteful number, since it uses less digits than its factorization.

5665667190978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880762.

The product of its (nonzero) digits is 1028764800, while the sum is 75.

The spelling of 5665667190978 in words is "five trillion, six hundred sixty-five billion, six hundred sixty-seven million, one hundred ninety thousand, nine hundred seventy-eight".