64011937522680 has 256 divisors, whose sum is σ = 243864583142400. Its totient is φ = 14630725025280.

The previous prime is 64011937522613. The next prime is 64011937522691. The reversal of 64011937522680 is 8622573911046.

It is a happy number.

64011937522680 is a `hidden beast` number, since 6 + 4 + 0 + 1 + 1 + 9 + 37 + 522 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209735790 + ... + 210040770.

It is an arithmetic number, because the mean of its divisors is an integer number (952596027900).

It is a 1-persistent number, because it is pandigital, but 2⋅64011937522680 = 128023875045360 is not.

Almost surely, 2^{64011937522680} is an apocalyptic number.

64011937522680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64011937522680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121932291571200).

64011937522680 is an abundant number, since it is smaller than the sum of its proper divisors (179852645619720).

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

64011937522680 is a wasteful number, since it uses less digits than its factorization.

64011937522680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332771 (or 332761 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 64011937522680 in words is "sixty-four trillion, eleven billion, nine hundred thirty-seven million, five hundred twenty-two thousand, six hundred eighty".