161027615 has 16 divisors (see below), whose sum is σ = 221045760. Its totient is φ = 110315040.

The previous prime is 161027597. The next prime is 161027653. The reversal of 161027615 is 516720161.

161027615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161027615 - 2¹⁶ = 160962079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64256 + ... + 66714.

It is an arithmetic number, because the mean of its divisors is an integer number (13815360).

Almost surely, 2^161027615 is an apocalyptic number.

161027615 is a deficient number, since it is larger than the sum of its proper divisors (60018145).

161027615 is a wasteful number, since it uses less digits than its factorization.

161027615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 161027615 is about 12689.6656772352. The cubic root of 161027615 is about 544.0432840686.

Adding to 161027615 its reverse (516720161), we get a palindrome (677747776).

The spelling of 161027615 in words is "one hundred sixty-one million, twenty-seven thousand, six hundred fifteen".