202102425660 has 96 divisors (see below), whose sum is σ = 603142751232. Its totient is φ = 50387788800.

The previous prime is 202102425641. The next prime is 202102425671. The reversal of 202102425660 is 66524201202.

It is a happy number.

202102425660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502072 + ... + 810111.

It is an arithmetic number, because the mean of its divisors is an integer number (6282736992).

Almost surely, 2^202102425660 is an apocalyptic number.

202102425660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102425660 is an abundant number, since it is smaller than the sum of its proper divisors (401040325572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202102425660 is a wasteful number, since it uses less digits than its factorization.

202102425660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312363 (or 1312361 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 202102425660 its reverse (66524201202), we get a palindrome (268626626862).

The spelling of 202102425660 in words is "two hundred two billion, one hundred two million, four hundred twenty-five thousand, six hundred sixty".