65002161051 has 6 divisors (see below), whose sum is σ = 93892010420. Its totient is φ = 43334774028.

The previous prime is 65002161013. The next prime is 65002161067. The reversal of 65002161051 is 15016120056.

It is a happy number.

65002161051 is a `hidden beast` number, since 650 + 0 + 2 + 1 + 6 + 1 + 0 + 5 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-65002161051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65002161071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3611231161 + ... + 3611231178.

Almost surely, 2^65002161051 is an apocalyptic number.

65002161051 is a deficient number, since it is larger than the sum of its proper divisors (28889849369).

65002161051 is a wasteful number, since it uses less digits than its factorization.

65002161051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222462345 (or 7222462342 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 65002161051 in words is "sixty-five billion, two million, one hundred sixty-one thousand, fifty-one".