1582741668 has 12 divisors (see below), whose sum is σ = 3693063920. Its totient is φ = 527580552.

The previous prime is 1582741663. The next prime is 1582741669. The reversal of 1582741668 is 8661472851.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1582741663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65947558 + ... + 65947581.

Almost surely, 2^1582741668 is an apocalyptic number.

It is an amenable number.

1582741668 is an abundant number, since it is smaller than the sum of its proper divisors (2110322252).

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

1582741668 is a wasteful number, since it uses less digits than its factorization.

1582741668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131895146 (or 131895144 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 1582741668 is about 39783.6859529129. The cubic root of 1582741668 is about 1165.3865781626.

The spelling of 1582741668 in words is "one billion, five hundred eighty-two million, seven hundred forty-one thousand, six hundred sixty-eight".