99616261699 has 4 divisors (see below), whose sum is σ = 103947403536. Its totient is φ = 95285119864.

The previous prime is 99616261697. The next prime is 99616261799.

99616261699 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99616261699 - 2¹ = 99616261697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99616261699.

It is not an unprimeable number, because it can be changed into a prime (99616261697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165570884 + ... + 2165570929.

It is an arithmetic number, because the mean of its divisors is an integer number (25986850884).

Almost surely, 2^99616261699 is an apocalyptic number.

99616261699 is a deficient number, since it is larger than the sum of its proper divisors (4331141837).

99616261699 is a wasteful number, since it uses less digits than its factorization.

99616261699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331141836.

The product of its digits is 17006112, while the sum is 64.

The spelling of 99616261699 in words is "ninety-nine billion, six hundred sixteen million, two hundred sixty-one thousand, six hundred ninety-nine".