70180661772 has 216 divisors, whose sum is σ = 196915729920. Its totient is φ = 21058652160.

The previous prime is 70180661731. The next prime is 70180661773. The reversal of 70180661772 is 27716608107.

It is not an unprimeable number, because it can be changed into a prime (70180661773) 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 71 ways as a sum of consecutive naturals, for example, 47132004 + ... + 47133492.

Almost surely, 2^70180661772 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 70180661772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98457864960).

70180661772 is an abundant number, since it is smaller than the sum of its proper divisors (126735068148).

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

70180661772 is a wasteful number, since it uses less digits than its factorization.

70180661772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 70180661772 in words is "seventy billion, one hundred eighty million, six hundred sixty-one thousand, seven hundred seventy-two".