63066877440 has 640 divisors, whose sum is σ = 246126532608. Its totient is φ = 13447987200.

The previous prime is 63066877421. The next prime is 63066877453. The reversal of 63066877440 is 4477866036.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 138001692 + ... + 138002148.

Almost surely, 2^63066877440 is an apocalyptic number.

63066877440 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 63066877440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123063266304).

63066877440 is an abundant number, since it is smaller than the sum of its proper divisors (183059655168).

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

63066877440 is a wasteful number, since it uses less digits than its factorization.

63066877440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

It can be divided in two parts, 63066 and 877440, that added together give a triangular number (940506 = T₁₃₇₁).

The spelling of 63066877440 in words is "sixty-three billion, sixty-six million, eight hundred seventy-seven thousand, four hundred forty".