102606502699 has 4 divisors (see below), whose sum is σ = 102607169080. Its totient is φ = 102605836320.

The previous prime is 102606502679. The next prime is 102606502711. The reversal of 102606502699 is 996205606201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102606502699 - 2²⁹ = 102069631787 is a prime.

It is a super-4 number, since 4×102606502699⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102606502679) 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, 29044 + ... + 453934.

It is an arithmetic number, because the mean of its divisors is an integer number (25651792270).

Almost surely, 2^102606502699 is an apocalyptic number.

102606502699 is a deficient number, since it is larger than the sum of its proper divisors (666381).

102606502699 is an equidigital number, since it uses as much as digits as its factorization.

102606502699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666380.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 102606502699 in words is "one hundred two billion, six hundred six million, five hundred two thousand, six hundred ninety-nine".