161036655 has 16 divisors (see below), whose sum is σ = 277478880. Its totient is φ = 79279488.

The previous prime is 161036653. The next prime is 161036657. The reversal of 161036655 is 556630161.

It is an interprime number because it is at equal distance from previous prime (161036653) and next prime (161036657).

It is not a de Polignac number, because 161036655 - 2¹ = 161036653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161036653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412720 + ... + 413109.

It is an arithmetic number, because the mean of its divisors is an integer number (17342430).

Almost surely, 2^161036655 is an apocalyptic number.

161036655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161036655 is a deficient number, since it is larger than the sum of its proper divisors (116442225).

161036655 is a wasteful number, since it uses less digits than its factorization.

161036655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825850.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 161036655 is about 12690.0218675935. The cubic root of 161036655 is about 544.0534646397.

The spelling of 161036655 in words is "one hundred sixty-one million, thirty-six thousand, six hundred fifty-five".