70561515120 has 160 divisors (see below), whose sum is σ = 233377562880. Its totient is φ = 17574236160.

The previous prime is 70561515119. The next prime is 70561515127. The reversal of 70561515120 is 2151516507.

It is a happy number.

It is a super-2 number, since 2×70561515120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70561515127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468471 + ... + 600489.

It is an arithmetic number, because the mean of its divisors is an integer number (1458609768).

Almost surely, 2^70561515120 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 70561515120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116688781440).

70561515120 is an abundant number, since it is smaller than the sum of its proper divisors (162816047760).

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

70561515120 is a wasteful number, since it uses less digits than its factorization.

70561515120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132183 (or 132177 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 70561515120 in words is "seventy billion, five hundred sixty-one million, five hundred fifteen thousand, one hundred twenty".