70161560 has 64 divisors (see below), whose sum is σ = 182649600. Its totient is φ = 23757696.

The previous prime is 70161517. The next prime is 70161563. The reversal of 70161560 is 6516107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70161563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21731 + ... + 24749.

It is an arithmetic number, because the mean of its divisors is an integer number (2853900).

Almost surely, 2^70161560 is an apocalyptic number.

70161560 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 70161560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91324800).

70161560 is an abundant number, since it is smaller than the sum of its proper divisors (112488040).

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

70161560 is a wasteful number, since it uses less digits than its factorization.

70161560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 70161560 is about 8376.2497574989. The cubic root of 70161560 is about 412.4453505808.

Adding to 70161560 its reverse (6516107), we get a palindrome (76677667).

The spelling of 70161560 in words is "seventy million, one hundred sixty-one thousand, five hundred sixty".