1612665632 has 54 divisors (see below), whose sum is σ = 3295045089. Its totient is φ = 776914560.

The previous prime is 1612665623. The next prime is 1612665661. The reversal of 1612665632 is 2365662161.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1214104336 + 398561296 = 34844^2 + 19964^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28396.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7042094 + ... + 7042322.

Almost surely, 2^1612665632 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 1612665632

1612665632 is an abundant number, since it is smaller than the sum of its proper divisors (1682379457).

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

1612665632 is an frugal number, since it uses more digits than its factorization.

1612665632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 262 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 1612665632 is about 40158.0083171464. The cubic root of 1612665632 is about 1172.6851984606.

The spelling of 1612665632 in words is "one billion, six hundred twelve million, six hundred sixty-five thousand, six hundred thirty-two".