20005752101465 has 16 divisors (see below), whose sum is σ = 27374386587408. Its totient is φ = 13904450328576.

The previous prime is 20005752101459. The next prime is 20005752101479. The reversal of 20005752101465 is 56410125750002.

It can be written as a sum of positive squares in 8 ways, for example, as 2214801744841 + 17790950356624 = 1488221^2 + 4217932^2 .

It is a cyclic number.

It is not a de Polignac number, because 20005752101465 - 2¹² = 20005752097369 is a prime.

It is a Duffinian number.

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, 9052375412 + ... + 9052377621.

It is an arithmetic number, because the mean of its divisors is an integer number (1710899161713).

Almost surely, 2^{20005752101465} is an apocalyptic number.

It is an amenable number.

20005752101465 is a deficient number, since it is larger than the sum of its proper divisors (7368634485943).

20005752101465 is a wasteful number, since it uses less digits than its factorization.

20005752101465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18104753068.

The product of its (nonzero) digits is 84000, while the sum is 38.

Adding to 20005752101465 its reverse (56410125750002), we get a palindrome (76415877851467).

The spelling of 20005752101465 in words is "twenty trillion, five billion, seven hundred fifty-two million, one hundred one thousand, four hundred sixty-five".