20524402662261 has 4 divisors (see below), whose sum is σ = 27365870216352. Its totient is φ = 13682935108172.

The previous prime is 20524402662259. The next prime is 20524402662299. The reversal of 20524402662261 is 16226620442502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20524402662261 - 2¹ = 20524402662259 is a prime.

It is a super-2 number, since 2×20524402662261² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524402660261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420733777041 + ... + 3420733777046.

It is an arithmetic number, because the mean of its divisors is an integer number (6841467554088).

Almost surely, 2^{20524402662261} is an apocalyptic number.

It is an amenable number.

20524402662261 is a deficient number, since it is larger than the sum of its proper divisors (6841467554091).

20524402662261 is an equidigital number, since it uses as much as digits as its factorization.

20524402662261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841467554090.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 20524402662261 in words is "twenty trillion, five hundred twenty-four billion, four hundred two million, six hundred sixty-two thousand, two hundred sixty-one".