1228658546166 has 64 divisors (see below), whose sum is σ = 2552819867136. Its totient is φ = 393939302400.

The previous prime is 1228658546153. The next prime is 1228658546179. The reversal of 1228658546166 is 6616458568221.

It is an interprime number because it is at equal distance from previous prime (1228658546153) and next prime (1228658546179).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16026646 + ... + 16103126.

It is an arithmetic number, because the mean of its divisors is an integer number (39887810424).

Almost surely, 2^{1228658546166} is an apocalyptic number.

1228658546166 is an abundant number, since it is smaller than the sum of its proper divisors (1324161320970).

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

1228658546166 is a wasteful number, since it uses less digits than its factorization.

1228658546166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77477.

The product of its digits is 33177600, while the sum is 60.

The spelling of 1228658546166 in words is "one trillion, two hundred twenty-eight billion, six hundred fifty-eight million, five hundred forty-six thousand, one hundred sixty-six".