161700607 has 8 divisors (see below), whose sum is σ = 167880240. Its totient is φ = 155561280.

The previous prime is 161700601. The next prime is 161700613. The reversal of 161700607 is 706007161.

It is an interprime number because it is at equal distance from previous prime (161700601) and next prime (161700613).

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 161700607 - 2¹⁵ = 161667839 is a prime.

It is a super-2 number, since 2×161700607² = 52294172608336898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161700601) 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, 1773 + ... + 18070.

It is an arithmetic number, because the mean of its divisors is an integer number (20985030).

Almost surely, 2^161700607 is an apocalyptic number.

161700607 is a deficient number, since it is larger than the sum of its proper divisors (6179633).

161700607 is a wasteful number, since it uses less digits than its factorization.

161700607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 161700607 is about 12716.1553545087. The cubic root of 161700607 is about 544.8001478042.

Adding to 161700607 its reverse (706007161), we get a palindrome (867707768).

The spelling of 161700607 in words is "one hundred sixty-one million, seven hundred thousand, six hundred seven".