67772946660 has 48 divisors (see below), whose sum is σ = 189966071232. Its totient is φ = 18053564800.

The previous prime is 67772946641. The next prime is 67772946671. The reversal of 67772946660 is 6664927776.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 67772946594 and 67772946603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543726 + ... + 656645.

It is an arithmetic number, because the mean of its divisors is an integer number (3957626484).

Almost surely, 2^67772946660 is an apocalyptic number.

67772946660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67772946660 is an abundant number, since it is smaller than the sum of its proper divisors (122193124572).

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

67772946660 is a wasteful number, since it uses less digits than its factorization.

67772946660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201324 (or 1201322 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 60.

The spelling of 67772946660 in words is "sixty-seven billion, seven hundred seventy-two million, nine hundred forty-six thousand, six hundred sixty".