161159662 has 4 divisors (see below), whose sum is σ = 241739496. Its totient is φ = 80579830.

The previous prime is 161159659. The next prime is 161159683. The reversal of 161159662 is 266951161.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40289914 + ... + 40289917.

It is an arithmetic number, because the mean of its divisors is an integer number (60434874).

Almost surely, 2^161159662 is an apocalyptic number.

161159662 is a deficient number, since it is larger than the sum of its proper divisors (80579834).

161159662 is an equidigital number, since it uses as much as digits as its factorization.

161159662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80579833.

The product of its digits is 19440, while the sum is 37.

The square root of 161159662 is about 12694.8675455871. The cubic root of 161159662 is about 544.1919535080.

The spelling of 161159662 in words is "one hundred sixty-one million, one hundred fifty-nine thousand, six hundred sixty-two".