78248016660 has 96 divisors (see below), whose sum is σ = 239103446400. Its totient is φ = 18961968640.

The previous prime is 78248016643. The next prime is 78248016661. The reversal of 78248016660 is 6661084287.

It is a super-2 number, since 2×78248016660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78248016661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1819486 + ... + 1861994.

It is an arithmetic number, because the mean of its divisors is an integer number (2490660900).

Almost surely, 2^78248016660 is an apocalyptic number.

It is an amenable number.

78248016660 is an abundant number, since it is smaller than the sum of its proper divisors (160855429740).

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

78248016660 is a wasteful number, since it uses less digits than its factorization.

78248016660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45321 (or 45319 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 78248016660 in words is "seventy-eight billion, two hundred forty-eight million, sixteen thousand, six hundred sixty".