1662326236641 has 128 divisors (see below), whose sum is σ = 2847925149696. Its totient is φ = 840141434880.

The previous prime is 1662326236633. The next prime is 1662326236661. The reversal of 1662326236641 is 1466326232661.

It is not a de Polignac number, because 1662326236641 - 2³ = 1662326236633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1662326236661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 619576086 + ... + 619578768.

It is an arithmetic number, because the mean of its divisors is an integer number (22249415232).

Almost surely, 2^{1662326236641} is an apocalyptic number.

It is an amenable number.

1662326236641 is a deficient number, since it is larger than the sum of its proper divisors (1185598913055).

1662326236641 is a wasteful number, since it uses less digits than its factorization.

1662326236641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its digits is 2239488, while the sum is 48.

The spelling of 1662326236641 in words is "one trillion, six hundred sixty-two billion, three hundred twenty-six million, two hundred thirty-six thousand, six hundred forty-one".