4661215651 has 2 divisors, whose sum is σ = 4661215652. Its totient is φ = 4661215650.

The previous prime is 4661215619. The next prime is 4661215693. The reversal of 4661215651 is 1565121664.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4661215651 - 2⁵ = 4661215619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4661215651.

It is not a weakly prime, because it can be changed into another prime (4661215051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2330607825 + 2330607826.

It is an arithmetic number, because the mean of its divisors is an integer number (2330607826).

Almost surely, 2^4661215651 is an apocalyptic number.

4661215651 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661215651 is an equidigital number, since it uses as much as digits as its factorization.

4661215651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 4661215651 is about 68273.0960994153. The cubic root of 4661215651 is about 1670.4484018285.

The spelling of 4661215651 in words is "four billion, six hundred sixty-one million, two hundred fifteen thousand, six hundred fifty-one".