4601606551 has 4 divisors (see below), whose sum is σ = 4750045504. Its totient is φ = 4453167600.

The previous prime is 4601606543. The next prime is 4601606557. The reversal of 4601606551 is 1556061064.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4601606551 - 2³ = 4601606543 is a prime.

It is a super-2 number, since 2×4601606551² = 42349565700412231202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4601606557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74219430 + ... + 74219491.

It is an arithmetic number, because the mean of its divisors is an integer number (1187511376).

Almost surely, 2^4601606551 is an apocalyptic number.

4601606551 is a deficient number, since it is larger than the sum of its proper divisors (148438953).

4601606551 is a wasteful number, since it uses less digits than its factorization.

4601606551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148438952.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 4601606551 is about 67835.1424484389. The cubic root of 4601606551 is about 1663.2970893915.

The spelling of 4601606551 in words is "four billion, six hundred one million, six hundred six thousand, five hundred fifty-one".