1582181011660 has 24 divisors (see below), whose sum is σ = 3393273320640. Its totient is φ = 619407033984.

The previous prime is 1582181011627. The next prime is 1582181011667. The reversal of 1582181011660 is 661101812851.

It is a super-2 number, since 2×1582181011660² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1582181011667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841584705 + ... + 841586584.

It is an arithmetic number, because the mean of its divisors is an integer number (141386388360).

Almost surely, 2^{1582181011660} is an apocalyptic number.

1582181011660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1582181011660 is an abundant number, since it is smaller than the sum of its proper divisors (1811092308980).

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

1582181011660 is a wasteful number, since it uses less digits than its factorization.

1582181011660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683171345 (or 1683171343 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 40.

The spelling of 1582181011660 in words is "one trillion, five hundred eighty-two billion, one hundred eighty-one million, eleven thousand, six hundred sixty".