64266540480 has 196 divisors, whose sum is σ = 229447920072. Its totient is φ = 17137681920.

The previous prime is 64266540473. The next prime is 64266540491. The reversal of 64266540480 is 8404566246.

64266540480 is a `hidden beast` number, since 6 + 4 + 2 + 66 + 540 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent 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 27 ways as a sum of consecutive naturals, for example, 95535 + ... + 371025.

Almost surely, 2^64266540480 is an apocalyptic number.

64266540480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64266540480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114723960036).

64266540480 is an abundant number, since it is smaller than the sum of its proper divisors (165181379592).

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

64266540480 is an equidigital number, since it uses as much as digits as its factorization.

64266540480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275526 (or 275501 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 64266540480 in words is "sixty-four billion, two hundred sixty-six million, five hundred forty thousand, four hundred eighty".