70016021716 has 12 divisors (see below), whose sum is σ = 122534821332. Its totient is φ = 35006072768.

The previous prime is 70016021609. The next prime is 70016021717. The reversal of 70016021716 is 61712061007.

It can be written as a sum of positive squares in 2 ways, for example, as 37019299216 + 32996722500 = 192404^2 + 181650^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70016021717) 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 3 ways as a sum of consecutive naturals, for example, 401665 + ... + 548968.

It is an arithmetic number, because the mean of its divisors is an integer number (10211235111).

Almost surely, 2^70016021716 is an apocalyptic number.

It is an amenable number.

70016021716 is a deficient number, since it is larger than the sum of its proper divisors (52518799616).

70016021716 is a wasteful number, since it uses less digits than its factorization.

70016021716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969050 (or 969048 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 70016021716 in words is "seventy billion, sixteen million, twenty-one thousand, seven hundred sixteen".