1630225164 has 12 divisors (see below), whose sum is σ = 3803858744. Its totient is φ = 543408384.

The previous prime is 1630225147. The next prime is 1630225199. The reversal of 1630225164 is 4615220361.

It is a tau number, because it is divible by the number of its divisors (12).

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, 67926037 + ... + 67926060.

Almost surely, 2^1630225164 is an apocalyptic number.

It is an amenable number.

1630225164 is an abundant number, since it is smaller than the sum of its proper divisors (2173633580).

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

1630225164 is a wasteful number, since it uses less digits than its factorization.

1630225164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135852104 (or 135852102 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1630225164 is about 40376.0469090276. The cubic root of 1630225164 is about 1176.9261094228.

The spelling of 1630225164 in words is "one billion, six hundred thirty million, two hundred twenty-five thousand, one hundred sixty-four".