161601263416 has 16 divisors (see below), whose sum is σ = 303084294840. Its totient is φ = 80778784800.

The previous prime is 161601263393. The next prime is 161601263429. The reversal of 161601263416 is 614362106161.

It is a super-2 number, since 2×161601263416² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2699406 + ... + 2758621.

Almost surely, 2^161601263416 is an apocalyptic number.

It is an amenable number.

161601263416 is a deficient number, since it is larger than the sum of its proper divisors (141483031424).

161601263416 is a wasteful number, since it uses less digits than its factorization.

161601263416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461734 (or 5461730 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

Adding to 161601263416 its reverse (614362106161), we get a palindrome (775963369577).

The spelling of 161601263416 in words is "one hundred sixty-one billion, six hundred one million, two hundred sixty-three thousand, four hundred sixteen".