64478172096 has 196 divisors, whose sum is σ = 206594077032. Its totient is φ = 19839250944.

The previous prime is 64478172089. The next prime is 64478172103. The reversal of 64478172096 is 69027187446.

64478172096 is a `hidden beast` number, since 64 + 478 + 1 + 7 + 20 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (64478172089) and next prime (64478172103).

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 27 ways as a sum of consecutive naturals, for example, 553375 + ... + 659681.

Almost surely, 2^64478172096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64478172096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103297038516).

64478172096 is an abundant number, since it is smaller than the sum of its proper divisors (142115904936).

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

64478172096 is a wasteful number, since it uses less digits than its factorization.

64478172096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106350 (or 106325 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 64478172096 in words is "sixty-four billion, four hundred seventy-eight million, one hundred seventy-two thousand, ninety-six".