20240135532455 has 32 divisors (see below), whose sum is σ = 25117711718400. Its totient is φ = 15647131987200.

The previous prime is 20240135532443. The next prime is 20240135532467. The reversal of 20240135532455 is 55423553104202.

It is an interprime number because it is at equal distance from previous prime (20240135532443) and next prime (20240135532467).

It is not a de Polignac number, because 20240135532455 - 2¹⁰ = 20240135531431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11457326 + ... + 13105364.

It is an arithmetic number, because the mean of its divisors is an integer number (784928491200).

Almost surely, 2^{20240135532455} is an apocalyptic number.

20240135532455 is a deficient number, since it is larger than the sum of its proper divisors (4877576185945).

20240135532455 is a wasteful number, since it uses less digits than its factorization.

20240135532455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648655.

The product of its (nonzero) digits is 720000, while the sum is 41.

Adding to 20240135532455 its reverse (55423553104202), we get a palindrome (75663688636657).

The spelling of 20240135532455 in words is "twenty trillion, two hundred forty billion, one hundred thirty-five million, five hundred thirty-two thousand, four hundred fifty-five".