53144450168 has 16 divisors (see below), whose sum is σ = 99985936680. Its totient is φ = 26481533728.

The previous prime is 53144450153. The next prime is 53144450173. The reversal of 53144450168 is 86105444135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11333930 + ... + 11338617.

Almost surely, 2^53144450168 is an apocalyptic number.

It is an amenable number.

53144450168 is a deficient number, since it is larger than the sum of its proper divisors (46841486512).

53144450168 is a wasteful number, since it uses less digits than its factorization.

53144450168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22672846 (or 22672842 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 53144450168 in words is "fifty-three billion, one hundred forty-four million, four hundred fifty thousand, one hundred sixty-eight".