99143646464 has 144 divisors (see below), whose sum is σ = 215575610880. Its totient is φ = 45333872640.

The previous prime is 99143646461. The next prime is 99143646527. The reversal of 99143646464 is 46464634199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99143646461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101477144 + ... + 101478120.

Almost surely, 2^99143646464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99143646464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107787805440).

99143646464 is an abundant number, since it is smaller than the sum of its proper divisors (116431964416).

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

99143646464 is a wasteful number, since it uses less digits than its factorization.

99143646464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1702 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 56.

The spelling of 99143646464 in words is "ninety-nine billion, one hundred forty-three million, six hundred forty-six thousand, four hundred sixty-four".