16261340535 has 24 divisors (see below), whose sum is σ = 30748717584. Its totient is φ = 7884286080.

The previous prime is 16261340489. The next prime is 16261340581. The reversal of 16261340535 is 53504316261.

16261340535 is a `hidden beast` number, since 1 + 6 + 2 + 613 + 4 + 0 + 5 + 35 = 666.

It is an interprime number because it is at equal distance from previous prime (16261340489) and next prime (16261340581).

It is not a de Polignac number, because 16261340535 - 2⁹ = 16261340023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16261340535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16425102 + ... + 16426091.

It is an arithmetic number, because the mean of its divisors is an integer number (1281196566).

Almost surely, 2^16261340535 is an apocalyptic number.

16261340535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16261340535 is a deficient number, since it is larger than the sum of its proper divisors (14487377049).

16261340535 is a wasteful number, since it uses less digits than its factorization.

16261340535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32851215 (or 32851212 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 16261340535 its reverse (53504316261), we get a palindrome (69765656796).

The spelling of 16261340535 in words is "sixteen billion, two hundred sixty-one million, three hundred forty thousand, five hundred thirty-five".