66746850990480 has 160 divisors (see below), whose sum is σ = 229930175491200. Its totient is φ = 17797274684928.

The previous prime is 66746850990403. The next prime is 66746850990503. The reversal of 66746850990480 is 8409905864766.

66746850990480 is a `hidden beast` number, since 6 + 6 + 7 + 4 + 6 + 8 + 50 + 9 + 90 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 66746850990399 and 66746850990408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18816666 + ... + 22080774.

It is an arithmetic number, because the mean of its divisors is an integer number (1437063596820).

Almost surely, 2^{66746850990480} is an apocalyptic number.

66746850990480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66746850990480 is an abundant number, since it is smaller than the sum of its proper divisors (163183324500720).

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

66746850990480 is a wasteful number, since it uses less digits than its factorization.

66746850990480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273598 (or 3273586 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 66746850990480 in words is "sixty-six trillion, seven hundred forty-six billion, eight hundred fifty million, nine hundred ninety thousand, four hundred eighty".