64936528542144 has 224 divisors, whose sum is σ = 219511484003840. Its totient is φ = 18439469420544.

The previous prime is 64936528542131. The next prime is 64936528542199. The reversal of 64936528542144 is 44124582563946.

64936528542144 is a `hidden beast` number, since 6 + 4 + 9 + 3 + 65 + 28 + 542 + 1 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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, 14495929 + ... + 18439224.

It is an arithmetic number, because the mean of its divisors is an integer number (979961982160).

Almost surely, 2^{64936528542144} is an apocalyptic number.

64936528542144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64936528542144 is an abundant number, since it is smaller than the sum of its proper divisors (154574955461696).

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

64936528542144 is a wasteful number, since it uses less digits than its factorization.

64936528542144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32935344 (or 32935328 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 63.

The spelling of 64936528542144 in words is "sixty-four trillion, nine hundred thirty-six billion, five hundred twenty-eight million, five hundred forty-two thousand, one hundred forty-four".