1662580045 has 12 divisors (see below), whose sum is σ = 2320826364. Its totient is φ = 1140054720.

The previous prime is 1662580039. The next prime is 1662580061. The reversal of 1662580045 is 5400852661.

It can be written as a sum of positive squares in 2 ways, for example, as 1328019364 + 334560681 = 36442^2 + 18291^2 .

It is not a de Polignac number, because 1662580045 - 2⁵ = 1662580013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1662579986 and 1662580013.

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, 3392776 + ... + 3393265.

It is an arithmetic number, because the mean of its divisors is an integer number (193402197).

Almost surely, 2^1662580045 is an apocalyptic number.

It is an amenable number.

1662580045 is a deficient number, since it is larger than the sum of its proper divisors (658246319).

1662580045 is an equidigital number, since it uses as much as digits as its factorization.

1662580045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786060 (or 6786053 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1662580045 is about 40774.7476387040. The cubic root of 1662580045 is about 1184.6612632422.

The spelling of 1662580045 in words is "one billion, six hundred sixty-two million, five hundred eighty thousand, forty-five".