64485041357144 has 64 divisors (see below), whose sum is σ = 124892672947200. Its totient is φ = 31181717750400.

The previous prime is 64485041357081. The next prime is 64485041357189. The reversal of 64485041357144 is 44175314058446.

It is a self number, because there is not a number n which added to its sum of digits gives 64485041357144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2768656139 + ... + 2768679429.

It is an arithmetic number, because the mean of its divisors is an integer number (1951448014800).

Almost surely, 2^{64485041357144} is an apocalyptic number.

It is an amenable number.

64485041357144 is a deficient number, since it is larger than the sum of its proper divisors (60407631590056).

64485041357144 is a wasteful number, since it uses less digits than its factorization.

64485041357144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30264 (or 30260 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 56.

The spelling of 64485041357144 in words is "sixty-four trillion, four hundred eighty-five billion, forty-one million, three hundred fifty-seven thousand, one hundred forty-four".