396511766660 has 48 divisors (see below), whose sum is σ = 861544857600. Its totient is φ = 153107627904.

The previous prime is 396511766653. The next prime is 396511766767. The reversal of 396511766660 is 66667115693.

It is a junction number, because it is equal to n+sod(n) for n = 396511766596 and 396511766605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3271421 + ... + 3390459.

It is an arithmetic number, because the mean of its divisors is an integer number (17948851200).

Almost surely, 2^396511766660 is an apocalyptic number.

It is an amenable number.

396511766660 is an abundant number, since it is smaller than the sum of its proper divisors (465033090940).

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

396511766660 is a wasteful number, since it uses less digits than its factorization.

396511766660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124820 (or 124818 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 56.

The spelling of 396511766660 in words is "three hundred ninety-six billion, five hundred eleven million, seven hundred sixty-six thousand, six hundred sixty".