1662536044 has 24 divisors (see below), whose sum is σ = 3135205808. Its totient is φ = 766843200.

The previous prime is 1662536021. The next prime is 1662536087. The reversal of 1662536044 is 4406352661.

It is a junction number, because it is equal to n+sod(n) for n = 1662535994 and 1662536012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81694 + ... + 99994.

Almost surely, 2^1662536044 is an apocalyptic number.

It is an amenable number.

1662536044 is a deficient number, since it is larger than the sum of its proper divisors (1472669764).

1662536044 is a wasteful number, since it uses less digits than its factorization.

1662536044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20065 (or 20063 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1662536044 is about 40774.2080732416. The cubic root of 1662536044 is about 1184.6508122687.

The spelling of 1662536044 in words is "one billion, six hundred sixty-two million, five hundred thirty-six thousand, forty-four".