16535740761 has 32 divisors (see below), whose sum is σ = 25971062400. Its totient is φ = 10362309120.

The previous prime is 16535740733. The next prime is 16535740789. The reversal of 16535740761 is 16704753561.

16535740761 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 574 + 0 + 76 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (16535740733) and next prime (16535740789).

It is not a de Polignac number, because 16535740761 - 2⁵ = 16535740729 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16535040761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349066 + ... + 393596.

It is an arithmetic number, because the mean of its divisors is an integer number (811595700).

Almost surely, 2^16535740761 is an apocalyptic number.

It is an amenable number.

16535740761 is a deficient number, since it is larger than the sum of its proper divisors (9435321639).

16535740761 is a wasteful number, since it uses less digits than its factorization.

16535740761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45366 (or 45360 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 16535740761 in words is "sixteen billion, five hundred thirty-five million, seven hundred forty thousand, seven hundred sixty-one".