64103106395520 has 256 divisors, whose sum is σ = 227203779672000. Its totient is φ = 17081215303680.

The previous prime is 64103106395519. The next prime is 64103106395527. The reversal of 64103106395520 is 2559360130146.

64103106395520 is a `hidden beast` number, since 6 + 4 + 1 + 0 + 3 + 1 + 0 + 639 + 5 + 5 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64103106395527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21422766 + ... + 24230994.

Almost surely, 2^{64103106395520} is an apocalyptic number.

64103106395520 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 64103106395520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113601889836000).

64103106395520 is an abundant number, since it is smaller than the sum of its proper divisors (163100673276480).

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

64103106395520 is a wasteful number, since it uses less digits than its factorization.

64103106395520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809578 (or 2809560 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 64103106395520 in words is "sixty-four trillion, one hundred three billion, one hundred six million, three hundred ninety-five thousand, five hundred twenty".