1665615101160 has 128 divisors (see below), whose sum is σ = 5032334304000. Its totient is φ = 441011773440.

The previous prime is 1665615101153. The next prime is 1665615101179. The reversal of 1665615101160 is 611015165661.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49886392 + ... + 49919768.

It is an arithmetic number, because the mean of its divisors is an integer number (39315111750).

Almost surely, 2^{1665615101160} is an apocalyptic number.

1665615101160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1665615101160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516167152000).

1665615101160 is an abundant number, since it is smaller than the sum of its proper divisors (3366719202840).

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

1665615101160 is a wasteful number, since it uses less digits than its factorization.

1665615101160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36331 (or 36327 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 1665615101160 in words is "one trillion, six hundred sixty-five billion, six hundred fifteen million, one hundred one thousand, one hundred sixty".