70556821104 has 160 divisors (see below), whose sum is σ = 229127477760. Its totient is φ = 18326330880.

The previous prime is 70556821037. The next prime is 70556821109. The reversal of 70556821104 is 40112865507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70556821109) 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, 368332 + ... + 526100.

It is an arithmetic number, because the mean of its divisors is an integer number (1432046736).

Almost surely, 2^70556821104 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 70556821104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114563738880).

70556821104 is an abundant number, since it is smaller than the sum of its proper divisors (158570656656).

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

70556821104 is a wasteful number, since it uses less digits than its factorization.

70556821104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157820 (or 157792 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 70556821104 in words is "seventy billion, five hundred fifty-six million, eight hundred twenty-one thousand, one hundred four".