1660065051 has 16 divisors (see below), whose sum is σ = 2321616384. Its totient is φ = 1053885024.

The previous prime is 1660065049. The next prime is 1660065059. The reversal of 1660065051 is 1505600661.

It is not a de Polignac number, because 1660065051 - 2¹ = 1660065049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1660065059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153885 + ... + 164318.

It is an arithmetic number, because the mean of its divisors is an integer number (145101024).

Almost surely, 2^1660065051 is an apocalyptic number.

1660065051 is a deficient number, since it is larger than the sum of its proper divisors (661551333).

1660065051 is a wasteful number, since it uses less digits than its factorization.

1660065051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318290.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1660065051 is about 40743.8958741061. The cubic root of 1660065051 is about 1184.0636139104.

The spelling of 1660065051 in words is "one billion, six hundred sixty million, sixty-five thousand, fifty-one".