102662705725 has 12 divisors (see below), whose sum is σ = 127461506004. Its totient is φ = 82027099520.

The previous prime is 102662705657. The next prime is 102662705767. The reversal of 102662705725 is 527507266201.

It can be written as a sum of positive squares in 6 ways, for example, as 4675550884 + 97987154841 = 68378^2 + 313029^2 .

It is not a de Polignac number, because 102662705725 - 2³¹ = 100515222077 is a prime.

It is a super-2 number, since 2×102662705725² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2556304 + ... + 2596153.

It is an arithmetic number, because the mean of its divisors is an integer number (10621792167).

Almost surely, 2^102662705725 is an apocalyptic number.

It is an amenable number.

102662705725 is a deficient number, since it is larger than the sum of its proper divisors (24798800279).

102662705725 is an equidigital number, since it uses as much as digits as its factorization.

102662705725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153264 (or 5153259 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 102662705725 in words is "one hundred two billion, six hundred sixty-two million, seven hundred five thousand, seven hundred twenty-five".