235540542465 has 32 divisors (see below), whose sum is σ = 432246451200. Its totient is φ = 121569310080.

The previous prime is 235540542443. The next prime is 235540542469. The reversal of 235540542465 is 564245045532.

235540542465 is a `hidden beast` number, since 2 + 3 + 5 + 5 + 40 + 542 + 4 + 65 = 666.

It is not a de Polignac number, because 235540542465 - 2⁷ = 235540542337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 235540542465.

It is not an unprimeable number, because it can be changed into a prime (235540542469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28136860 + ... + 28145229.

It is an arithmetic number, because the mean of its divisors is an integer number (13507701600).

Almost surely, 2^235540542465 is an apocalyptic number.

It is an amenable number.

235540542465 is a deficient number, since it is larger than the sum of its proper divisors (196705908735).

235540542465 is a wasteful number, since it uses less digits than its factorization.

235540542465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56282134 (or 56282128 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 45.

Adding to 235540542465 its reverse (564245045532), we get a palindrome (799785587997).

The spelling of 235540542465 in words is "two hundred thirty-five billion, five hundred forty million, five hundred forty-two thousand, four hundred sixty-five".