1665015016662 has 48 divisors (see below), whose sum is σ = 3859655220720. Its totient is φ = 517174632000.

The previous prime is 1665015016661. The next prime is 1665015016729. The reversal of 1665015016662 is 2666105105661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665015016661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39884589 + ... + 39926312.

It is an arithmetic number, because the mean of its divisors is an integer number (80409483765).

Almost surely, 2^{1665015016662} is an apocalyptic number.

1665015016662 is an abundant number, since it is smaller than the sum of its proper divisors (2194640204058).

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

1665015016662 is a wasteful number, since it uses less digits than its factorization.

1665015016662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79810989 (or 79810986 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 1665015016662 in words is "one trillion, six hundred sixty-five billion, fifteen million, sixteen thousand, six hundred sixty-two".