143911855044 has 18 divisors (see below), whose sum is σ = 363777189230. Its totient is φ = 47970618336.

The previous prime is 143911855039. The next prime is 143911855057. The reversal of 143911855044 is 440558119341.

143911855044 is a `hidden beast` number, since 1 + 4 + 3 + 91 + 1 + 8 + 550 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 128221286400 + 15690568644 = 358080^2 + 125262^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1998775729 + ... + 1998775800.

Almost surely, 2^143911855044 is an apocalyptic number.

It is an amenable number.

143911855044 is an abundant number, since it is smaller than the sum of its proper divisors (219865334186).

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

143911855044 is a wasteful number, since it uses less digits than its factorization.

143911855044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997551539 (or 3997551534 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 143911855044 in words is "one hundred forty-three billion, nine hundred eleven million, eight hundred fifty-five thousand, forty-four".