32516646474721 has 2 divisors, whose sum is σ = 32516646474722. Its totient is φ = 32516646474720.

The previous prime is 32516646474671. The next prime is 32516646474757. The reversal of 32516646474721 is 12747464661523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19146654224721 + 13369992250000 = 4375689^2 + 3656500^2 .

It is a cyclic number.

It is not a de Polignac number, because 32516646474721 - 2⁷ = 32516646474593 is a prime.

It is not a weakly prime, because it can be changed into another prime (32516646474121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16258323237360 + 16258323237361.

It is an arithmetic number, because the mean of its divisors is an integer number (16258323237361).

Almost surely, 2^{32516646474721} is an apocalyptic number.

It is an amenable number.

32516646474721 is a deficient number, since it is larger than the sum of its proper divisors (1).

32516646474721 is an equidigital number, since it uses as much as digits as its factorization.

32516646474721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40642560, while the sum is 58.

The spelling of 32516646474721 in words is "thirty-two trillion, five hundred sixteen billion, six hundred forty-six million, four hundred seventy-four thousand, seven hundred twenty-one".