16161540097 has 8 divisors (see below), whose sum is σ = 16603459776. Its totient is φ = 15719890032.

The previous prime is 16161540077. The next prime is 16161540121. The reversal of 16161540097 is 79004516161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16161540097 is a prime.

It is a super-2 number, since 2×16161540097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161540047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57228 + ... + 188674.

It is an arithmetic number, because the mean of its divisors is an integer number (2075432472).

Almost surely, 2^16161540097 is an apocalyptic number.

It is an amenable number.

16161540097 is a deficient number, since it is larger than the sum of its proper divisors (441919679).

16161540097 is a wasteful number, since it uses less digits than its factorization.

16161540097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134807.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 16161540097 in words is "sixteen billion, one hundred sixty-one million, five hundred forty thousand, ninety-seven".