70166880 has 144 divisors (see below), whose sum is σ = 273690144. Its totient is φ = 16035840.

The previous prime is 70166861. The next prime is 70166893. The reversal of 70166880 is 8866107.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6600 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (1900626).

Almost surely, 2^70166880 is an apocalyptic number.

70166880 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 70166880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136845072).

70166880 is an abundant number, since it is smaller than the sum of its proper divisors (203523264).

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

70166880 is a wasteful number, since it uses less digits than its factorization.

70166880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989 (or 6978 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 70166880 is about 8376.5673160311. The cubic root of 70166880 is about 412.4557748730.

The spelling of 70166880 in words is "seventy million, one hundred sixty-six thousand, eight hundred eighty".