70646161 has 8 divisors (see below), whose sum is σ = 74554400. Its totient is φ = 66756960.

The previous prime is 70646159. The next prime is 70646171. The reversal of 70646161 is 16164607.

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 70646161 - 2¹ = 70646159 is a prime.

It is a super-4 number, since 4×70646161⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70646171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3226 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (9319300).

Almost surely, 2^70646161 is an apocalyptic number.

It is an amenable number.

70646161 is a deficient number, since it is larger than the sum of its proper divisors (3908239).

70646161 is a wasteful number, since it uses less digits than its factorization.

70646161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9519.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70646161 is about 8405.1270662614. The cubic root of 70646161 is about 413.3927497976.

It can be divided in two parts, 70646 and 161, that added together give a palindrome (70807).

The spelling of 70646161 in words is "seventy million, six hundred forty-six thousand, one hundred sixty-one".