2135666724570 has 48 divisors (see below), whose sum is σ = 5552811393480. Its totient is φ = 569503135872.

The previous prime is 2135666724547. The next prime is 2135666724601. The reversal of 2135666724570 is 754276665312.

It can be written as a sum of positive squares in 4 ways, for example, as 1959918800841 + 175747923729 = 1399971^2 + 419223^2 .

It is a super-2 number, since 2×2135666724570² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9187336 + ... + 9416924.

Almost surely, 2^{2135666724570} is an apocalyptic number.

2135666724570 is an abundant number, since it is smaller than the sum of its proper divisors (3417144668910).

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

2135666724570 is a wasteful number, since it uses less digits than its factorization.

2135666724570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332959 (or 332956 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 2135666724570 in words is "two trillion, one hundred thirty-five billion, six hundred sixty-six million, seven hundred twenty-four thousand, five hundred seventy".