5405420701561 has 2 divisors, whose sum is σ = 5405420701562. Its totient is φ = 5405420701560.

The previous prime is 5405420701531. The next prime is 5405420701567. The reversal of 5405420701561 is 1651070245045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3991128923961 + 1414291777600 = 1997781^2 + 1189240^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405420701561 - 2¹³ = 5405420693369 is a prime.

It is not a weakly prime, because it can be changed into another prime (5405420701567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702710350780 + 2702710350781.

It is an arithmetic number, because the mean of its divisors is an integer number (2702710350781).

Almost surely, 2^{5405420701561} is an apocalyptic number.

It is an amenable number.

5405420701561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405420701561 is an equidigital number, since it uses as much as digits as its factorization.

5405420701561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 5405420701561 in words is "five trillion, four hundred five billion, four hundred twenty million, seven hundred one thousand, five hundred sixty-one".