654536521320 has 64 divisors (see below), whose sum is σ = 2142119528640. Its totient is φ = 158675520000.

The previous prime is 654536521307. The next prime is 654536521339. The reversal of 654536521320 is 23125635456.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247929181 + ... + 247931820.

It is an arithmetic number, because the mean of its divisors is an integer number (33470617635).

Almost surely, 2^654536521320 is an apocalyptic number.

654536521320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

654536521320 is an abundant number, since it is smaller than the sum of its proper divisors (1487583007320).

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

654536521320 is a wasteful number, since it uses less digits than its factorization.

654536521320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495861026 (or 495861022 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 654536521320 in words is "six hundred fifty-four billion, five hundred thirty-six million, five hundred twenty-one thousand, three hundred twenty".