1665160156 has 24 divisors (see below), whose sum is σ = 3195601920. Its totient is φ = 752924400.

The previous prime is 1665160129. The next prime is 1665160157. The reversal of 1665160156 is 6510615661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665160157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90666 + ... + 107473.

It is an arithmetic number, because the mean of its divisors is an integer number (133150080).

Almost surely, 2^1665160156 is an apocalyptic number.

It is an amenable number.

1665160156 is a deficient number, since it is larger than the sum of its proper divisors (1530441764).

1665160156 is a wasteful number, since it uses less digits than its factorization.

1665160156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198345 (or 198343 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1665160156 is about 40806.3739628995. The cubic root of 1665160156 is about 1185.2737606273.

The spelling of 1665160156 in words is "one billion, six hundred sixty-five million, one hundred sixty thousand, one hundred fifty-six".