1953662216 has 32 divisors (see below), whose sum is σ = 3998544480. Its totient is φ = 887491200.

The previous prime is 1953662201. The next prime is 1953662233. The reversal of 1953662216 is 6122663591.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164180 + ... + 175676.

It is an arithmetic number, because the mean of its divisors is an integer number (124954515).

Almost surely, 2^1953662216 is an apocalyptic number.

It is an amenable number.

1953662216 is an abundant number, since it is smaller than the sum of its proper divisors (2044882264).

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

1953662216 is a wasteful number, since it uses less digits than its factorization.

1953662216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445 (or 13441 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 1953662216 is about 44200.2513115027. The cubic root of 1953662216 is about 1250.1145955740.

The spelling of 1953662216 in words is "one billion, nine hundred fifty-three million, six hundred sixty-two thousand, two hundred sixteen".