161670038 has 8 divisors (see below), whose sum is σ = 242598888. Its totient is φ = 80803744.

The previous prime is 161670037. The next prime is 161670043. The reversal of 161670038 is 830076161.

161670038 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×161670038² = 52274402373842888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161669986 and 161670013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161670037) 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, 8531 + ... + 19902.

It is an arithmetic number, because the mean of its divisors is an integer number (30324861).

Almost surely, 2^161670038 is an apocalyptic number.

161670038 is a deficient number, since it is larger than the sum of its proper divisors (80928850).

161670038 is a wasteful number, since it uses less digits than its factorization.

161670038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31278.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 161670038 is about 12714.9533227614. The cubic root of 161670038 is about 544.7658147125.

The spelling of 161670038 in words is "one hundred sixty-one million, six hundred seventy thousand, thirty-eight".