99143201639 has 6 divisors (see below), whose sum is σ = 102679820880. Its totient is φ = 95724469736.

The previous prime is 99143201603. The next prime is 99143201653. The reversal of 99143201639 is 93610234199.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-99143201639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99143201593 and 99143201602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99143201699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58942799 + ... + 58944480.

It is an arithmetic number, because the mean of its divisors is an integer number (17113303480).

Almost surely, 2^99143201639 is an apocalyptic number.

99143201639 is a deficient number, since it is larger than the sum of its proper divisors (3536619241).

99143201639 is a wasteful number, since it uses less digits than its factorization.

99143201639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117887337 (or 117887308 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 99143201639 in words is "ninety-nine billion, one hundred forty-three million, two hundred one thousand, six hundred thirty-nine".