70166382720 has 512 divisors, whose sum is σ = 263622574080. Its totient is φ = 15542059008.

The previous prime is 70166382707. The next prime is 70166382721. The reversal of 70166382720 is 2728366107.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (70166382721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71379349 + ... + 71380331.

It is an arithmetic number, because the mean of its divisors is an integer number (514887840).

Almost surely, 2^70166382720 is an apocalyptic number.

70166382720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70166382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131811287040).

70166382720 is an abundant number, since it is smaller than the sum of its proper divisors (193456191360).

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

70166382720 is a wasteful number, since it uses less digits than its factorization.

70166382720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 70166382720 in words is "seventy billion, one hundred sixty-six million, three hundred eighty-two thousand, seven hundred twenty".