70161375280 has 80 divisors (see below), whose sum is σ = 166100377824. Its totient is φ = 27554365440.

The previous prime is 70161375253. The next prime is 70161375283. The reversal of 70161375280 is 8257316107.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (70161375283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2734672 + ... + 2760208.

Almost surely, 2^70161375280 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 70161375280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83050188912).

70161375280 is an abundant number, since it is smaller than the sum of its proper divisors (95939002544).

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

70161375280 is a wasteful number, since it uses less digits than its factorization.

70161375280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26174 (or 26168 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 70161375280 in words is "seventy billion, one hundred sixty-one million, three hundred seventy-five thousand, two hundred eighty".