1662552820788 has 48 divisors (see below), whose sum is σ = 3884503580160. Its totient is φ = 553439952000.

The previous prime is 1662552820783. The next prime is 1662552820813. The reversal of 1662552820788 is 8870282552661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662552820783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28744458 + ... + 28802238.

It is an arithmetic number, because the mean of its divisors is an integer number (80927157920).

Almost surely, 2^{1662552820788} is an apocalyptic number.

It is an amenable number.

1662552820788 is an abundant number, since it is smaller than the sum of its proper divisors (2221950759372).

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

1662552820788 is a wasteful number, since it uses less digits than its factorization.

1662552820788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60968 (or 60966 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 1662552820788 in words is "one trillion, six hundred sixty-two billion, five hundred fifty-two million, eight hundred twenty thousand, seven hundred eighty-eight".