66883490340 has 48 divisors (see below), whose sum is σ = 189644340480. Its totient is φ = 17609829120.

The previous prime is 66883490329. The next prime is 66883490341. The reversal of 66883490340 is 4309438866.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66883490341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7050481 + ... + 7059960.

It is an arithmetic number, because the mean of its divisors is an integer number (3950923760).

Almost surely, 2^66883490340 is an apocalyptic number.

66883490340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66883490340 is an abundant number, since it is smaller than the sum of its proper divisors (122760850140).

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

66883490340 is a wasteful number, since it uses less digits than its factorization.

66883490340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110532 (or 14110530 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 66883490340 in words is "sixty-six billion, eight hundred eighty-three million, four hundred ninety thousand, three hundred forty".