65404212145 has 32 divisors (see below), whose sum is σ = 85932380160. Its totient is φ = 47604024000.

The previous prime is 65404212089. The next prime is 65404212187. The reversal of 65404212145 is 54121240456.

It is a de Polignac number, because none of the positive numbers 2^k-65404212145 is a prime.

It is a super-4 number, since 4×65404212145⁴ (a number of 44 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65404212145.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 301030 + ... + 470560.

It is an arithmetic number, because the mean of its divisors is an integer number (2685386880).

Almost surely, 2^65404212145 is an apocalyptic number.

It is an amenable number.

65404212145 is a deficient number, since it is larger than the sum of its proper divisors (20528168015).

65404212145 is a wasteful number, since it uses less digits than its factorization.

65404212145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169717.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 65404212145 in words is "sixty-five billion, four hundred four million, two hundred twelve thousand, one hundred forty-five".