1662536043 has 108 divisors (see below), whose sum is σ = 3075995880. Its totient is φ = 884764944.

The previous prime is 1662536021. The next prime is 1662536087. The reversal of 1662536043 is 3406352661.

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 is not a de Polignac number, because 1662536043 - 2¹⁰ = 1662535019 is a prime.

1662536043 is a modest number, since divided by 36043 gives 16625 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1662535989 and 1662536007.

It is not an unprimeable number, because it can be changed into a prime (1662536093) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 28178548 + ... + 28178606.

Almost surely, 2^1662536043 is an apocalyptic number.

1662536043 is a deficient number, since it is larger than the sum of its proper divisors (1413459837).

1662536043 is an equidigital number, since it uses as much as digits as its factorization.

1662536043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1662536043 is about 40774.2080609789. The cubic root of 1662536043 is about 1184.6508120312.

The spelling of 1662536043 in words is "one billion, six hundred sixty-two million, five hundred thirty-six thousand, forty-three".