146968566139 has 4 divisors (see below), whose sum is σ = 152036447760. Its totient is φ = 141900684520.

The previous prime is 146968566137. The next prime is 146968566161. The reversal of 146968566139 is 931665869641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931665869641 = 13 ⋅71666605357.

It is a cyclic number.

It is not a de Polignac number, because 146968566139 - 2¹ = 146968566137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146968566137) 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, 2533940767 + ... + 2533940824.

It is an arithmetic number, because the mean of its divisors is an integer number (38009111940).

Almost surely, 2^146968566139 is an apocalyptic number.

146968566139 is a deficient number, since it is larger than the sum of its proper divisors (5067881621).

146968566139 is an equidigital number, since it uses as much as digits as its factorization.

146968566139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067881620.

The product of its digits is 50388480, while the sum is 64.

The spelling of 146968566139 in words is "one hundred forty-six billion, nine hundred sixty-eight million, five hundred sixty-six thousand, one hundred thirty-nine".