1322664156 has 36 divisors (see below), whose sum is σ = 3647347704. Its totient is φ = 400807200.

The previous prime is 1322664143. The next prime is 1322664173. The reversal of 1322664156 is 6514662231.

1322664156 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 6 + 641 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1322664156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1669635 + ... + 1670426.

It is an arithmetic number, because the mean of its divisors is an integer number (101315214).

Almost surely, 2^1322664156 is an apocalyptic number.

It is an amenable number.

1322664156 is an abundant number, since it is smaller than the sum of its proper divisors (2324683548).

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

1322664156 is a wasteful number, since it uses less digits than its factorization.

1322664156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340082 (or 3340077 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1322664156 is about 36368.4500082145. The cubic root of 1322664156 is about 1097.6988135457.

The spelling of 1322664156 in words is "one billion, three hundred twenty-two million, six hundred sixty-four thousand, one hundred fifty-six".