220374046326691 has 2 divisors, whose sum is σ = 220374046326692. Its totient is φ = 220374046326690.

The previous prime is 220374046326683. The next prime is 220374046326719. The reversal of 220374046326691 is 196623640473022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220374046326691 - 2³ = 220374046326683 is a prime.

It is not a weakly prime, because it can be changed into another prime (220374046356691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110187023163345 + 110187023163346.

It is an arithmetic number, because the mean of its divisors is an integer number (110187023163346).

Almost surely, 2^{220374046326691} is an apocalyptic number.

220374046326691 is a deficient number, since it is larger than the sum of its proper divisors (1).

220374046326691 is an equidigital number, since it uses as much as digits as its factorization.

220374046326691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 55.

The spelling of 220374046326691 in words is "two hundred twenty trillion, three hundred seventy-four billion, forty-six million, three hundred twenty-six thousand, six hundred ninety-one".