161051607 has 6 divisors (see below), whose sum is σ = 232630112. Its totient is φ = 107367732.

The previous prime is 161051599. The next prime is 161051609. The reversal of 161051607 is 706150161.

161051607 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 51 + 607 = 666.

It is not a de Polignac number, because 161051607 - 2³ = 161051599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161051609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8947303 + ... + 8947320.

Almost surely, 2^161051607 is an apocalyptic number.

161051607 is a deficient number, since it is larger than the sum of its proper divisors (71578505).

161051607 is a wasteful number, since it uses less digits than its factorization.

161051607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17894629 (or 17894626 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 161051607 is about 12690.6109781996. The cubic root of 161051607 is about 544.0703022879.

The spelling of 161051607 in words is "one hundred sixty-one million, fifty-one thousand, six hundred seven".