1665000061548 has 24 divisors (see below), whose sum is σ = 3887972636352. Its totient is φ = 554575378704.

The previous prime is 1665000061471. The next prime is 1665000061561. The reversal of 1665000061548 is 8451600005661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53063890 + ... + 53095257.

It is an arithmetic number, because the mean of its divisors is an integer number (161998859848).

Almost surely, 2^{1665000061548} is an apocalyptic number.

It is an amenable number.

1665000061548 is an abundant number, since it is smaller than the sum of its proper divisors (2222972574804).

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

1665000061548 is a wasteful number, since it uses less digits than its factorization.

1665000061548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106160461 (or 106160459 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1665000061548 in words is "one trillion, six hundred sixty-five billion, sixty-one thousand, five hundred forty-eight".