99144444654 has 96 divisors (see below), whose sum is σ = 228748665600. Its totient is φ = 30946665600.

The previous prime is 99144444653. The next prime is 99144444727. The reversal of 99144444654 is 45644444199.

It is a happy number.

99144444654 is a `hidden beast` number, since 9 + 9 + 144 + 4 + 446 + 54 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 99144444654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99144444653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11071879 + ... + 11080829.

It is an arithmetic number, because the mean of its divisors is an integer number (2382798600).

Almost surely, 2^99144444654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99144444654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114374332800).

99144444654 is an abundant number, since it is smaller than the sum of its proper divisors (129604220946).

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

99144444654 is a wasteful number, since it uses less digits than its factorization.

99144444654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350 (or 9347 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 99144444654 in words is "ninety-nine billion, one hundred forty-four million, four hundred forty-four thousand, six hundred fifty-four".