1630616057 has 8 divisors (see below), whose sum is σ = 1863815616. Its totient is φ = 1397480112.

The previous prime is 1630616041. The next prime is 1630616069. The reversal of 1630616057 is 7506160361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1630616057 - 2⁴ = 1630616041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630616357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69923 + ... + 90279.

It is an arithmetic number, because the mean of its divisors is an integer number (232976952).

Almost surely, 2^1630616057 is an apocalyptic number.

It is an amenable number.

1630616057 is a deficient number, since it is larger than the sum of its proper divisors (233199559).

1630616057 is a wasteful number, since it uses less digits than its factorization.

1630616057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31807.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1630616057 is about 40380.8872735605. The cubic root of 1630616057 is about 1177.0201691111.

The spelling of 1630616057 in words is "one billion, six hundred thirty million, six hundred sixteen thousand, fifty-seven".