146668980877 has 4 divisors (see below), whose sum is σ = 146995638300. Its totient is φ = 146342323456.

The previous prime is 146668980847. The next prime is 146668980881. The reversal of 146668980877 is 778089866641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778089866641 = 977 ⋅796407233.

It can be written as a sum of positive squares in 2 ways, for example, as 93187330756 + 53481650121 = 305266^2 + 231261^2 .

It is a cyclic number.

It is not a de Polignac number, because 146668980877 - 2⁷ = 146668980749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146668980847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163328038 + ... + 163328935.

It is an arithmetic number, because the mean of its divisors is an integer number (36748909575).

Almost surely, 2^146668980877 is an apocalyptic number.

It is an amenable number.

146668980877 is a deficient number, since it is larger than the sum of its proper divisors (326657423).

146668980877 is an equidigital number, since it uses as much as digits as its factorization.

146668980877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326657422.

The product of its (nonzero) digits is 195084288, while the sum is 70.

The spelling of 146668980877 in words is "one hundred forty-six billion, six hundred sixty-eight million, nine hundred eighty thousand, eight hundred seventy-seven".