43144920168 has 64 divisors (see below), whose sum is σ = 129759168000. Its totient is φ = 11678323392.

The previous prime is 43144920089. The next prime is 43144920173. The reversal of 43144920168 is 86102944134.

It is a super-2 number, since 2×43144920168² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6755098 + ... + 6761481.

It is an arithmetic number, because the mean of its divisors is an integer number (2027487000).

Almost surely, 2^43144920168 is an apocalyptic number.

It is an amenable number.

43144920168 is an abundant number, since it is smaller than the sum of its proper divisors (86614247832).

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

43144920168 is a wasteful number, since it uses less digits than its factorization.

43144920168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13516614 (or 13516610 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 43144920168 in words is "forty-three billion, one hundred forty-four million, nine hundred twenty thousand, one hundred sixty-eight".