216161601935 has 8 divisors (see below), whose sum is σ = 263790429840. Its totient is φ = 169998276544.

The previous prime is 216161601907. The next prime is 216161601949. The reversal of 216161601935 is 539106161612.

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

It is a cyclic number.

It is not a de Polignac number, because 216161601935 - 2⁸ = 216161601679 is a prime.

It is a super-2 number, since 2×216161601935² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216161601892 and 216161601901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366375302 + ... + 366375891.

It is an arithmetic number, because the mean of its divisors is an integer number (32973803730).

Almost surely, 2^216161601935 is an apocalyptic number.

216161601935 is a deficient number, since it is larger than the sum of its proper divisors (47628827905).

216161601935 is an equidigital number, since it uses as much as digits as its factorization.

216161601935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732751257.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 216161601935 in words is "two hundred sixteen billion, one hundred sixty-one million, six hundred one thousand, nine hundred thirty-five".