146864353657 has 4 divisors (see below), whose sum is σ = 167844975616. Its totient is φ = 125883731700.

The previous prime is 146864353639. The next prime is 146864353661. The reversal of 146864353657 is 756353468641.

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, and also an emirpimes, since its reverse is a distinct semiprime: 756353468641 = 4327 ⋅174798583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146864353657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146864353357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10490310969 + ... + 10490310982.

It is an arithmetic number, because the mean of its divisors is an integer number (41961243904).

Almost surely, 2^146864353657 is an apocalyptic number.

It is an amenable number.

146864353657 is a deficient number, since it is larger than the sum of its proper divisors (20980621959).

146864353657 is an equidigital number, since it uses as much as digits as its factorization.

146864353657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20980621958.

The product of its digits is 43545600, while the sum is 58.

The spelling of 146864353657 in words is "one hundred forty-six billion, eight hundred sixty-four million, three hundred fifty-three thousand, six hundred fifty-seven".