1662665401300 has 72 divisors (see below), whose sum is σ = 3760889600160. Its totient is φ = 637230921600.

The previous prime is 1662665401279. The next prime is 1662665401301. The reversal of 1662665401300 is 31045662661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662665401301) 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 23 ways as a sum of consecutive naturals, for example, 1808394 + ... + 2568193.

It is an arithmetic number, because the mean of its divisors is an integer number (52234577780).

Almost surely, 2^{1662665401300} is an apocalyptic number.

1662665401300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1662665401300 is an abundant number, since it is smaller than the sum of its proper divisors (2098224198860).

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

1662665401300 is a wasteful number, since it uses less digits than its factorization.

1662665401300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376761 (or 4376754 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 1662665401300 in words is "one trillion, six hundred sixty-two billion, six hundred sixty-five million, four hundred one thousand, three hundred".