2135565971280 has 240 divisors, whose sum is σ = 8460909609984. Its totient is φ = 472383221760.

The previous prime is 2135565971233. The next prime is 2135565971293. The reversal of 2135565971280 is 821795655312.

2135565971280 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 565 + 9 + 71 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6678009 + ... + 6990488.

Almost surely, 2^{2135565971280} is an apocalyptic number.

2135565971280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135565971280 is an abundant number, since it is smaller than the sum of its proper divisors (6325343638704).

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

2135565971280 is a wasteful number, since it uses less digits than its factorization.

2135565971280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668554 (or 13668545 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 2135565971280 in words is "two trillion, one hundred thirty-five billion, five hundred sixty-five million, nine hundred seventy-one thousand, two hundred eighty".