146260321640 has 32 divisors (see below), whose sum is σ = 329107094280. Its totient is φ = 58500329472.

The previous prime is 146260321579. The next prime is 146260321703. The reversal of 146260321640 is 46123062641.

It can be written as a sum of positive squares in 4 ways, for example, as 124703621956 + 21556699684 = 353134^2 + 146822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 146260321640.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 551672 + ... + 772568.

Almost surely, 2^146260321640 is an apocalyptic number.

146260321640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146260321640 is an abundant number, since it is smaller than the sum of its proper divisors (182846772640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146260321640 is a wasteful number, since it uses less digits than its factorization.

146260321640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237461 (or 237457 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 146260321640 in words is "one hundred forty-six billion, two hundred sixty million, three hundred twenty-one thousand, six hundred forty".