1321472166 has 32 divisors (see below), whose sum is σ = 3042251520. Its totient is φ = 374845536.

The previous prime is 1321472129. The next prime is 1321472197. The reversal of 1321472166 is 6612741231.

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, 107341 + ... + 119016.

It is an arithmetic number, because the mean of its divisors is an integer number (95070360).

Almost surely, 2^1321472166 is an apocalyptic number.

1321472166 is an abundant number, since it is smaller than the sum of its proper divisors (1720779354).

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

1321472166 is a wasteful number, since it uses less digits than its factorization.

1321472166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226508.

The product of its digits is 12096, while the sum is 33.

The square root of 1321472166 is about 36352.0586212115. The cubic root of 1321472166 is about 1097.3689643146.

The spelling of 1321472166 in words is "one billion, three hundred twenty-one million, four hundred seventy-two thousand, one hundred sixty-six".