666741100740 has 96 divisors (see below), whose sum is σ = 2193251872896. Its totient is φ = 149200803840.

The previous prime is 666741100709. The next prime is 666741100769. The reversal of 666741100740 is 47001147666.

It is a junction number, because it is equal to n+sod(n) for n = 666741100692 and 666741100701.

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, 38845797 + ... + 38862956.

It is an arithmetic number, because the mean of its divisors is an integer number (22846373676).

Almost surely, 2^666741100740 is an apocalyptic number.

666741100740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

666741100740 is an abundant number, since it is smaller than the sum of its proper divisors (1526510772156).

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

666741100740 is a wasteful number, since it uses less digits than its factorization.

666741100740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77708789 (or 77708787 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 666741100740 in words is "six hundred sixty-six billion, seven hundred forty-one million, one hundred thousand, seven hundred forty".