70552878795648 has 640 divisors, whose sum is σ = 221835739910400. Its totient is φ = 22214178201600.

The previous prime is 70552878795617. The next prime is 70552878795683. The reversal of 70552878795648 is 84659787825507.

70552878795648 is a `hidden beast` number, since 7 + 0 + 5 + 528 + 7 + 87 + 9 + 5 + 6 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 22305682515 + ... + 22305685677.

It is an arithmetic number, because the mean of its divisors is an integer number (346618343610).

Almost surely, 2^{70552878795648} 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 70552878795648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110917869955200).

70552878795648 is an abundant number, since it is smaller than the sum of its proper divisors (151282861114752).

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

70552878795648 is a wasteful number, since it uses less digits than its factorization.

70552878795648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352 (or 4331 counting only the distinct ones).

The product of its (nonzero) digits is 9483264000, while the sum is 81.

The spelling of 70552878795648 in words is "seventy trillion, five hundred fifty-two billion, eight hundred seventy-eight million, seven hundred ninety-five thousand, six hundred forty-eight".