66270048840 has 96 divisors (see below), whose sum is σ = 219441451320. Its totient is φ = 17338573824.

The previous prime is 66270048829. The next prime is 66270048851. The reversal of 66270048840 is 4884007266.

66270048840 is a `hidden beast` number, since 6 + 62 + 70 + 0 + 488 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (66270048829) and next prime (66270048851).

It can be written as a sum of positive squares in 4 ways, for example, as 47204514756 + 19065534084 = 217266^2 + 138078^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1717557 + ... + 1755716.

Almost surely, 2^66270048840 is an apocalyptic number.

66270048840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66270048840 is an abundant number, since it is smaller than the sum of its proper divisors (153171402480).

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

66270048840 is a wasteful number, since it uses less digits than its factorization.

66270048840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473343 (or 3473336 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 66270048840 in words is "sixty-six billion, two hundred seventy million, forty-eight thousand, eight hundred forty".