1656160065 has 96 divisors (see below), whose sum is σ = 3404544000. Its totient is φ = 744266880.

The previous prime is 1656160021. The next prime is 1656160067. The reversal of 1656160065 is 5600616561.

It is not a de Polignac number, because 1656160065 - 2⁷ = 1656159937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1656160067) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 940656 + ... + 942414.

It is an arithmetic number, because the mean of its divisors is an integer number (35464000).

Almost surely, 2^1656160065 is an apocalyptic number.

1656160065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1656160065 is an abundant number, since it is smaller than the sum of its proper divisors (1748383935).

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

1656160065 is a wasteful number, since it uses less digits than its factorization.

1656160065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1656160065 is about 40695.9465426226. The cubic root of 1656160065 is about 1183.1344571331.

The spelling of 1656160065 in words is "one billion, six hundred fifty-six million, one hundred sixty thousand, sixty-five".