667054560 has 48 divisors (see below), whose sum is σ = 2101223376. Its totient is φ = 177881088.

The previous prime is 667054523. The next prime is 667054561. The reversal of 667054560 is 65450766.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667054561) 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, 694369 + ... + 695328.

It is an arithmetic number, because the mean of its divisors is an integer number (43775487).

Almost surely, 2^667054560 is an apocalyptic number.

667054560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667054560 is an abundant number, since it is smaller than the sum of its proper divisors (1434168816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667054560 is a wasteful number, since it uses less digits than its factorization.

667054560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389715 (or 1389707 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 667054560 is about 25827.3994045084. The cubic root of 667054560 is about 873.7498599061.

The spelling of 667054560 in words is "six hundred sixty-seven million, fifty-four thousand, five hundred sixty".