161066701 has 4 divisors (see below), whose sum is σ = 163105600. Its totient is φ = 159027804.

The previous prime is 161066699. The next prime is 161066747. The reversal of 161066701 is 107660161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 107660161 = 7 ⋅15380023.

It is a cyclic number.

It is not a de Polignac number, because 161066701 - 2¹ = 161066699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161066701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161066501) 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, 1019331 + ... + 1019488.

It is an arithmetic number, because the mean of its divisors is an integer number (40776400).

Almost surely, 2^161066701 is an apocalyptic number.

It is an amenable number.

161066701 is a deficient number, since it is larger than the sum of its proper divisors (2038899).

161066701 is an equidigital number, since it uses as much as digits as its factorization.

161066701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038898.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 161066701 is about 12691.2056558863. The cubic root of 161066701 is about 544.0872987873.

The spelling of 161066701 in words is "one hundred sixty-one million, sixty-six thousand, seven hundred one".