7613100661 has 2 divisors, whose sum is σ = 7613100662. Its totient is φ = 7613100660.

The previous prime is 7613100647. The next prime is 7613100689. The reversal of 7613100661 is 1660013167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7206312100 + 406788561 = 84890^2 + 20169^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613100661 - 2⁵ = 7613100629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7613100631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806550330 + 3806550331.

It is an arithmetic number, because the mean of its divisors is an integer number (3806550331).

Almost surely, 2^7613100661 is an apocalyptic number.

It is an amenable number.

7613100661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7613100661 is an equidigital number, since it uses as much as digits as its factorization.

7613100661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 7613100661 is about 87253.0839626887. The cubic root of 7613100661 is about 1967.2241958751.

The spelling of 7613100661 in words is "seven billion, six hundred thirteen million, one hundred thousand, six hundred sixty-one".