202660140440 has 32 divisors (see below), whose sum is σ = 458889695280. Its totient is φ = 80547722112.

The previous prime is 202660140421. The next prime is 202660140493. The reversal of 202660140440 is 44041066202.

It is a happy number.

It is a super-2 number, since 2×202660140440² (a number of 23 digits) contains 22 as substring.

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, 16129082 + ... + 16141641.

Almost surely, 2^202660140440 is an apocalyptic number.

202660140440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202660140440 is an abundant number, since it is smaller than the sum of its proper divisors (256229554840).

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

202660140440 is a wasteful number, since it uses less digits than its factorization.

202660140440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32270891 (or 32270887 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 202660140440 in words is "two hundred two billion, six hundred sixty million, one hundred forty thousand, four hundred forty".