16535957975 has 12 divisors (see below), whose sum is σ = 20558136576. Its totient is φ = 13194218880.

The previous prime is 16535957957. The next prime is 16535957983. The reversal of 16535957975 is 57975953561.

It is not a de Polignac number, because 16535957975 - 2²⁴ = 16519180759 is a prime.

It is a super-2 number, since 2×16535957975² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 853922 + ... + 873071.

It is an arithmetic number, because the mean of its divisors is an integer number (1713178048).

Almost surely, 2^16535957975 is an apocalyptic number.

16535957975 is a deficient number, since it is larger than the sum of its proper divisors (4022178601).

16535957975 is a wasteful number, since it uses less digits than its factorization.

16535957975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727386 (or 1727381 counting only the distinct ones).

The product of its digits is 44651250, while the sum is 62.

The spelling of 16535957975 in words is "sixteen billion, five hundred thirty-five million, nine hundred fifty-seven thousand, nine hundred seventy-five".