78106166952 has 96 divisors (see below), whose sum is σ = 216844051200. Its totient is φ = 23424445440.

The previous prime is 78106166947. The next prime is 78106166977. The reversal of 78106166952 is 25966160187.

It is a super-2 number, since 2×78106166952² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78106166895 and 78106166904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143049 + ... + 420327.

It is an arithmetic number, because the mean of its divisors is an integer number (2258792200).

Almost surely, 2^78106166952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78106166952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108422025600).

78106166952 is an abundant number, since it is smaller than the sum of its proper divisors (138737884248).

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

78106166952 is a wasteful number, since it uses less digits than its factorization.

78106166952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277407 (or 277392 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 78106166952 in words is "seventy-eight billion, one hundred six million, one hundred sixty-six thousand, nine hundred fifty-two".