146438665969 has 4 divisors (see below), whose sum is σ = 146772239680. Its totient is φ = 146105092260.

The previous prime is 146438665909. The next prime is 146438665973. The reversal of 146438665969 is 969566834641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146438665969 - 2¹³ = 146438657777 is a prime.

It is a super-2 number, since 2×146438665969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146438665909) 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, 166786197 + ... + 166787074.

It is an arithmetic number, because the mean of its divisors is an integer number (36693059920).

Almost surely, 2^146438665969 is an apocalyptic number.

It is an amenable number.

146438665969 is a deficient number, since it is larger than the sum of its proper divisors (333573711).

146438665969 is an equidigital number, since it uses as much as digits as its factorization.

146438665969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333573710.

The product of its digits is 201553920, while the sum is 67.

The spelling of 146438665969 in words is "one hundred forty-six billion, four hundred thirty-eight million, six hundred sixty-five thousand, nine hundred sixty-nine".