1630261701 has 8 divisors (see below), whose sum is σ = 2415202560. Its totient is φ = 1086841116.

The previous prime is 1630261691. The next prime is 1630261727. The reversal of 1630261701 is 1071620361.

1630261701 is a `hidden beast` number, since 1 + 630 + 26 + 1 + 7 + 0 + 1 = 666.

It is not a de Polignac number, because 1630261701 - 2¹⁸ = 1629999557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 60380063 = 1630261701 / (1 + 6 + 3 + 0 + 2 + 6 + 1 + 7 + 0 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630261741) 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, 30190005 + ... + 30190058.

It is an arithmetic number, because the mean of its divisors is an integer number (301900320).

Almost surely, 2^1630261701 is an apocalyptic number.

It is an amenable number.

1630261701 is a deficient number, since it is larger than the sum of its proper divisors (784940859).

1630261701 is an equidigital number, since it uses as much as digits as its factorization.

1630261701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60380072 (or 60380066 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1630261701 is about 40376.4993653487. The cubic root of 1630261701 is about 1176.9349018745.

The spelling of 1630261701 in words is "one billion, six hundred thirty million, two hundred sixty-one thousand, seven hundred one".