461516551 has 8 divisors (see below), whose sum is σ = 484775424. Its totient is φ = 438523800.

The previous prime is 461516533. The next prime is 461516567. The reversal of 461516551 is 155615164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461516551 - 2¹⁹ = 460992263 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 (461516501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62971 + ... + 69916.

It is an arithmetic number, because the mean of its divisors is an integer number (60596928).

Almost surely, 2^461516551 is an apocalyptic number.

461516551 is a deficient number, since it is larger than the sum of its proper divisors (23258873).

461516551 is a wasteful number, since it uses less digits than its factorization.

461516551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133061.

The product of its digits is 18000, while the sum is 34.

The square root of 461516551 is about 21482.9362750998. The cubic root of 461516551 is about 772.7916605175.

The spelling of 461516551 in words is "four hundred sixty-one million, five hundred sixteen thousand, five hundred fifty-one".