20130001277640 has 64 divisors (see below), whose sum is σ = 60390486351360. Its totient is φ = 5367957450240.

The previous prime is 20130001277629. The next prime is 20130001277657. The reversal of 20130001277640 is 4677210003102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16166217 + ... + 17366823.

It is an arithmetic number, because the mean of its divisors is an integer number (943601349240).

Almost surely, 2^{20130001277640} is an apocalyptic number.

20130001277640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130001277640 is an abundant number, since it is smaller than the sum of its proper divisors (40260485073720).

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

20130001277640 is a wasteful number, since it uses less digits than its factorization.

20130001277640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340342 (or 1340338 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 20130001277640 in words is "twenty trillion, one hundred thirty billion, one million, two hundred seventy-seven thousand, six hundred forty".