646153152 has 28 divisors (see below), whose sum is σ = 1709614056. Its totient is φ = 215384320.

The previous prime is 646153141. The next prime is 646153171. The reversal of 646153152 is 251351646.

It is a super-3 number, since 3×646153152³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682499 + ... + 1682882.

Almost surely, 2^646153152 is an apocalyptic number.

It is an amenable number.

646153152 is an abundant number, since it is smaller than the sum of its proper divisors (1063460904).

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

646153152 is a wasteful number, since it uses less digits than its factorization.

646153152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365396 (or 3365386 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 646153152 is about 25419.5427181529. The cubic root of 646153152 is about 864.5268563050.

The spelling of 646153152 in words is "six hundred forty-six million, one hundred fifty-three thousand, one hundred fifty-two".