2153216708 has 12 divisors (see below), whose sum is σ = 3898064940. Its totient is φ = 1039483872.

The previous prime is 2153216699. The next prime is 2153216711. The reversal of 2153216708 is 8076123512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1596162304 + 557054404 = 39952^2 + 23602^2 .

It is a super-2 number, since 2×2153216708² = 9272684383220714528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9280991 + ... + 9281222.

It is an arithmetic number, because the mean of its divisors is an integer number (324838745).

Almost surely, 2^2153216708 is an apocalyptic number.

It is an amenable number.

2153216708 is a deficient number, since it is larger than the sum of its proper divisors (1744848232).

2153216708 is a wasteful number, since it uses less digits than its factorization.

2153216708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18562246 (or 18562244 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2153216708 is about 46402.7661675465. The cubic root of 2153216708 is about 1291.3062321201.

The spelling of 2153216708 in words is "two billion, one hundred fifty-three million, two hundred sixteen thousand, seven hundred eight".