1219308164406 has 48 divisors (see below), whose sum is σ = 2661734481120. Its totient is φ = 403379366400.

The previous prime is 1219308164401. The next prime is 1219308164411. The reversal of 1219308164406 is 6044618039121.

1219308164406 is a `hidden beast` number, since 1 + 2 + 193 + 0 + 8 + 16 + 440 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1219308164401) and next prime (1219308164411).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219308164401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2812006 + ... + 3216518.

It is an arithmetic number, because the mean of its divisors is an integer number (55452801690).

Almost surely, 2^{1219308164406} is an apocalyptic number.

1219308164406 is an abundant number, since it is smaller than the sum of its proper divisors (1442426316714).

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

1219308164406 is a wasteful number, since it uses less digits than its factorization.

1219308164406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405781 (or 405778 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1219308164406 in words is "one trillion, two hundred nineteen billion, three hundred eight million, one hundred sixty-four thousand, four hundred six".