70216164 has 18 divisors (see below), whose sum is σ = 177490950. Its totient is φ = 23405376.

The previous prime is 70216127. The next prime is 70216169. The reversal of 70216164 is 46161207.

It can be written as a sum of positive squares in only one way, i.e., 69856164 + 360000 = 8358^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (70216169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 975189 + ... + 975260.

Almost surely, 2^70216164 is an apocalyptic number.

It is an amenable number.

70216164 is an abundant number, since it is smaller than the sum of its proper divisors (107274786).

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

70216164 is a wasteful number, since it uses less digits than its factorization.

70216164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950459 (or 1950454 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 70216164 is about 8379.5085774764. The cubic root of 70216164 is about 412.5523195346.

The spelling of 70216164 in words is "seventy million, two hundred sixteen thousand, one hundred sixty-four".