1662787583342 has 4 divisors (see below), whose sum is σ = 2494181375016. Its totient is φ = 831393791670.

The previous prime is 1662787583341. The next prime is 1662787583363. The reversal of 1662787583342 is 2433857872661.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662787583341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415696895834 + ... + 415696895837.

It is an arithmetic number, because the mean of its divisors is an integer number (623545343754).

Almost surely, 2^{1662787583342} is an apocalyptic number.

1662787583342 is a deficient number, since it is larger than the sum of its proper divisors (831393791674).

1662787583342 is an equidigital number, since it uses as much as digits as its factorization.

1662787583342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831393791673.

The product of its digits is 81285120, while the sum is 62.

The spelling of 1662787583342 in words is "one trillion, six hundred sixty-two billion, seven hundred eighty-seven million, five hundred eighty-three thousand, three hundred forty-two".