161770025414 has 8 divisors (see below), whose sum is σ = 242719431240. Its totient is φ = 80863548336.

The previous prime is 161770025411. The next prime is 161770025447. The reversal of 161770025414 is 414520077161.

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

It is a super-2 number, since 2×161770025414² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161770025411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10722764 + ... + 10737839.

It is an arithmetic number, because the mean of its divisors is an integer number (30339928905).

Almost surely, 2^161770025414 is an apocalyptic number.

161770025414 is a deficient number, since it is larger than the sum of its proper divisors (80949405826).

161770025414 is a wasteful number, since it uses less digits than its factorization.

161770025414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21464374.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 161770025414 in words is "one hundred sixty-one billion, seven hundred seventy million, twenty-five thousand, four hundred fourteen".