146642446062691 has 2 divisors, whose sum is σ = 146642446062692. Its totient is φ = 146642446062690.

The previous prime is 146642446062653. The next prime is 146642446062703. The reversal of 146642446062691 is 196260644246641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146642446062691 - 2²¹ = 146642443965539 is a prime.

It is a super-2 number, since 2×146642446062691² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146642446062611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73321223031345 + 73321223031346.

It is an arithmetic number, because the mean of its divisors is an integer number (73321223031346).

Almost surely, 2^{146642446062691} is an apocalyptic number.

146642446062691 is a deficient number, since it is larger than the sum of its proper divisors (1).

146642446062691 is an equidigital number, since it uses as much as digits as its factorization.

146642446062691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71663616, while the sum is 61.

The spelling of 146642446062691 in words is "one hundred forty-six trillion, six hundred forty-two billion, four hundred forty-six million, sixty-two thousand, six hundred ninety-one".