64949166546 has 16 divisors (see below), whose sum is σ = 141707272608. Its totient is φ = 19681565600.

The previous prime is 64949166487. The next prime is 64949166559. The reversal of 64949166546 is 64566194946.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64949166546.

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 7 ways as a sum of consecutive naturals, for example, 492039075 + ... + 492039206.

It is an arithmetic number, because the mean of its divisors is an integer number (8856704538).

Almost surely, 2^64949166546 is an apocalyptic number.

64949166546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64949166546 is an abundant number, since it is smaller than the sum of its proper divisors (76758106062).

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

64949166546 is a wasteful number, since it uses less digits than its factorization.

64949166546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984078297.

The product of its digits is 33592320, while the sum is 60.

The spelling of 64949166546 in words is "sixty-four billion, nine hundred forty-nine million, one hundred sixty-six thousand, five hundred forty-six".