65144244156 has 48 divisors (see below), whose sum is σ = 155439212544. Its totient is φ = 21225096256.

The previous prime is 65144244127. The next prime is 65144244173.

It is a happy number.

65144244156 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361261 + ... + 510683.

It is an arithmetic number, because the mean of its divisors is an integer number (3238316928).

Almost surely, 2^65144244156 is an apocalyptic number.

It is an amenable number.

65144244156 is an abundant number, since it is smaller than the sum of its proper divisors (90294968388).

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

65144244156 is a wasteful number, since it uses less digits than its factorization.

65144244156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150250 (or 150248 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The spelling of 65144244156 in words is "sixty-five billion, one hundred forty-four million, two hundred forty-four thousand, one hundred fifty-six".