1323465516 has 72 divisors (see below), whose sum is σ = 3510136448. Its totient is φ = 419904000.

The previous prime is 1323465509. The next prime is 1323465553. The reversal of 1323465516 is 6155643231.

1323465516 is a `hidden beast` number, since 132 + 3 + 4 + 6 + 5 + 516 = 666.

It is a super-2 number, since 2×1323465516² = 3503121944082292512, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58356 + ... + 77796.

Almost surely, 2^1323465516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323465516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755068224).

1323465516 is an abundant number, since it is smaller than the sum of its proper divisors (2186670932).

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

1323465516 is a wasteful number, since it uses less digits than its factorization.

1323465516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543 (or 19538 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1323465516 is about 36379.4655815613. The cubic root of 1323465516 is about 1097.9204556826.

The spelling of 1323465516 in words is "one billion, three hundred twenty-three million, four hundred sixty-five thousand, five hundred sixteen".