16161632395 has 4 divisors (see below), whose sum is σ = 19393958880. Its totient is φ = 12929305912.

The previous prime is 16161632359. The next prime is 16161632521. The reversal of 16161632395 is 59323616161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59323616161 = 89657 ⋅661673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16161632395 is a prime.

It is a super-2 number, since 2×16161632395² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616163235 + ... + 1616163244.

It is an arithmetic number, because the mean of its divisors is an integer number (4848489720).

Almost surely, 2^16161632395 is an apocalyptic number.

16161632395 is a deficient number, since it is larger than the sum of its proper divisors (3232326485).

16161632395 is an equidigital number, since it uses as much as digits as its factorization.

16161632395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232326484.

The product of its digits is 174960, while the sum is 43.

The spelling of 16161632395 in words is "sixteen billion, one hundred sixty-one million, six hundred thirty-two thousand, three hundred ninety-five".