78325954467066 has 80 divisors (see below), whose sum is σ = 191826752705280. Its totient is φ = 23780175903360.

The previous prime is 78325954467053. The next prime is 78325954467107. The reversal of 78325954467066 is 66076445952387.

It is a happy number.

78325954467066 is a `hidden beast` number, since 7 + 8 + 3 + 2 + 5 + 9 + 544 + 6 + 70 + 6 + 6 = 666.

It is a super-2 number, since 2×78325954467066² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78325954466985 and 78325954467003.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 458637156 + ... + 458807903.

It is an arithmetic number, because the mean of its divisors is an integer number (2397834408816).

Almost surely, 2^{78325954467066} is an apocalyptic number.

78325954467066 is an abundant number, since it is smaller than the sum of its proper divisors (113500798238214).

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

78325954467066 is a wasteful number, since it uses less digits than its factorization.

78325954467066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917445121 (or 917445112 counting only the distinct ones).

The product of its (nonzero) digits is 1828915200, while the sum is 72.

The spelling of 78325954467066 in words is "seventy-eight trillion, three hundred twenty-five billion, nine hundred fifty-four million, four hundred sixty-seven thousand, sixty-six".