102640200518 has 16 divisors (see below), whose sum is σ = 165689198784. Its totient is φ = 47509445760.

The previous prime is 102640200451. The next prime is 102640200529. The reversal of 102640200518 is 815002046201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24742430 + ... + 24746577.

It is an arithmetic number, because the mean of its divisors is an integer number (10355574924).

Almost surely, 2^102640200518 is an apocalyptic number.

102640200518 is a deficient number, since it is larger than the sum of its proper divisors (63048998266).

102640200518 is a wasteful number, since it uses less digits than its factorization.

102640200518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49489087.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 102640200518 its reverse (815002046201), we get a palindrome (917642246719).

The spelling of 102640200518 in words is "one hundred two billion, six hundred forty million, two hundred thousand, five hundred eighteen".