4161517551 has 24 divisors (see below), whose sum is σ = 6042887760. Its totient is φ = 2759702400.

The previous prime is 4161517519. The next prime is 4161517553. The reversal of 4161517551 is 1557151614.

4161517551 is a `hidden beast` number, since 41 + 61 + 5 + 1 + 7 + 551 = 666.

It is not a de Polignac number, because 4161517551 - 2⁵ = 4161517519 is a prime.

It is a super-3 number, since 3×4161517551³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161517553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2050005 + ... + 2052033.

It is an arithmetic number, because the mean of its divisors is an integer number (251786990).

Almost surely, 2^4161517551 is an apocalyptic number.

4161517551 is a deficient number, since it is larger than the sum of its proper divisors (1881370209).

4161517551 is a wasteful number, since it uses less digits than its factorization.

4161517551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127 (or 3124 counting only the distinct ones).

The product of its digits is 21000, while the sum is 36.

The square root of 4161517551 is about 64509.8252284100. The cubic root of 4161517551 is about 1608.4858455700.

The spelling of 4161517551 in words is "four billion, one hundred sixty-one million, five hundred seventeen thousand, five hundred fifty-one".