52770601661 has 2 divisors, whose sum is σ = 52770601662. Its totient is φ = 52770601660.

The previous prime is 52770601627. The next prime is 52770601693. The reversal of 52770601661 is 16610607725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51526276036 + 1244325625 = 226994^2 + 35275^2 .

It is a cyclic number.

It is not a de Polignac number, because 52770601661 - 2¹⁴ = 52770585277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52770201661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26385300830 + 26385300831.

It is an arithmetic number, because the mean of its divisors is an integer number (26385300831).

Almost surely, 2^52770601661 is an apocalyptic number.

It is an amenable number.

52770601661 is a deficient number, since it is larger than the sum of its proper divisors (1).

52770601661 is an equidigital number, since it uses as much as digits as its factorization.

52770601661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 52770601661 in words is "fifty-two billion, seven hundred seventy million, six hundred one thousand, six hundred sixty-one".