1228173207016 has 16 divisors (see below), whose sum is σ = 2631799729440. Its totient is φ = 526359945840.

The previous prime is 1228173207007. The next prime is 1228173207029. The reversal of 1228173207016 is 6107023718221.

It is a self number, because there is not a number n which added to its sum of digits gives 1228173207016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10965832150 + ... + 10965832261.

It is an arithmetic number, because the mean of its divisors is an integer number (164487483090).

Almost surely, 2^{1228173207016} is an apocalyptic number.

It is an amenable number.

1228173207016 is an abundant number, since it is smaller than the sum of its proper divisors (1403626522424).

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

1228173207016 is a wasteful number, since it uses less digits than its factorization.

1228173207016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931664424 (or 21931664420 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 1228173207016 in words is "one trillion, two hundred twenty-eight billion, one hundred seventy-three million, two hundred seven thousand, sixteen".