90010060061 has 2 divisors, whose sum is σ = 90010060062. Its totient is φ = 90010060060.

The previous prime is 90010060051. The next prime is 90010060081. The reversal of 90010060061 is 16006001009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81456584836 + 8553475225 = 285406^2 + 92485^2 .

It is an emirp because it is prime and its reverse (16006001009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90010060061 - 2¹⁰ = 90010059037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90010060051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45005030030 + 45005030031.

It is an arithmetic number, because the mean of its divisors is an integer number (45005030031).

Almost surely, 2^90010060061 is an apocalyptic number.

It is an amenable number.

90010060061 is a deficient number, since it is larger than the sum of its proper divisors (1).

90010060061 is an equidigital number, since it uses as much as digits as its factorization.

90010060061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 90010060061 in words is "ninety billion, ten million, sixty thousand, sixty-one".