65605605051 has 24 divisors (see below), whose sum is σ = 101798283600. Its totient is φ = 37473203712.

The previous prime is 65605605041. The next prime is 65605605061. The reversal of 65605605051 is 15050650656.

It is an interprime number because it is at equal distance from previous prime (65605605041) and next prime (65605605061).

It is not a de Polignac number, because 65605605051 - 2¹⁰ = 65605604027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65605605041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262975 + ... + 447623.

It is an arithmetic number, because the mean of its divisors is an integer number (4241595150).

Almost surely, 2^65605605051 is an apocalyptic number.

65605605051 is a deficient number, since it is larger than the sum of its proper divisors (36192678549).

65605605051 is a wasteful number, since it uses less digits than its factorization.

65605605051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187083 (or 187076 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 65605605051 in words is "sixty-five billion, six hundred five million, six hundred five thousand, fifty-one".