481660551 has 12 divisors (see below), whose sum is σ = 704539680. Its totient is φ = 317041920.

The previous prime is 481660523. The next prime is 481660573. The reversal of 481660551 is 155066184.

481660551 is a `hidden beast` number, since 48 + 1 + 6 + 60 + 551 = 666.

It is not a de Polignac number, because 481660551 - 2⁵ = 481660519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481662551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338010 + ... + 339431.

It is an arithmetic number, because the mean of its divisors is an integer number (58711640).

Almost surely, 2^481660551 is an apocalyptic number.

481660551 is a deficient number, since it is larger than the sum of its proper divisors (222879129).

481660551 is a wasteful number, since it uses less digits than its factorization.

481660551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677526 (or 677523 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 481660551 is about 21946.7662993891. The cubic root of 481660551 is about 783.8753831286.

The spelling of 481660551 in words is "four hundred eighty-one million, six hundred sixty thousand, five hundred fifty-one".