1630070061 has 8 divisors (see below), whose sum is σ = 2173778880. Its totient is φ = 1086537312.

The previous prime is 1630070033. The next prime is 1630070083. The reversal of 1630070061 is 1600700361.

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

It is not a de Polignac number, because 1630070061 - 2⁶ = 1630069997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630080061) 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, 20640 + ... + 60713.

It is an arithmetic number, because the mean of its divisors is an integer number (271722360).

Almost surely, 2^1630070061 is an apocalyptic number.

It is an amenable number.

1630070061 is a deficient number, since it is larger than the sum of its proper divisors (543708819).

1630070061 is an equidigital number, since it uses as much as digits as its factorization.

1630070061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88035.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1630070061 is about 40374.1261329580. The cubic root of 1630070061 is about 1176.8887831761. Note that the first 3 decimals are identical.

The spelling of 1630070061 in words is "one billion, six hundred thirty million, seventy thousand, sixty-one".