78212033325016 has 64 divisors (see below), whose sum is σ = 161701157018880. Its totient is φ = 35303176151040.

The previous prime is 78212033324969. The next prime is 78212033325059. The reversal of 78212033325016 is 61052333021287.

It is a super-2 number, since 2×78212033325016² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81608731 + ... + 82561546.

It is an arithmetic number, because the mean of its divisors is an integer number (2526580578420).

Almost surely, 2^{78212033325016} is an apocalyptic number.

It is an amenable number.

78212033325016 is an abundant number, since it is smaller than the sum of its proper divisors (83489123693864).

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

78212033325016 is a wasteful number, since it uses less digits than its factorization.

78212033325016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164170444 (or 164170440 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 78212033325016 in words is "seventy-eight trillion, two hundred twelve billion, thirty-three million, three hundred twenty-five thousand, sixteen".