20765752252715 has 16 divisors (see below), whose sum is σ = 26469558872640. Its totient is φ = 15585115345920.

The previous prime is 20765752252631. The next prime is 20765752252717. The reversal of 20765752252715 is 51725225756702.

It is not a de Polignac number, because 20765752252715 - 2¹⁴ = 20765752236331 is a prime.

It is a super-2 number, since 2×20765752252715² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20765752252717) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 392743610 + ... + 392796479.

It is an arithmetic number, because the mean of its divisors is an integer number (1654347429540).

Almost surely, 2^{20765752252715} is an apocalyptic number.

20765752252715 is a deficient number, since it is larger than the sum of its proper divisors (5703806619925).

20765752252715 is a wasteful number, since it uses less digits than its factorization.

20765752252715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785540422.

The product of its (nonzero) digits is 20580000, while the sum is 56.

The spelling of 20765752252715 in words is "twenty trillion, seven hundred sixty-five billion, seven hundred fifty-two million, two hundred fifty-two thousand, seven hundred fifteen".