646055335 has 16 divisors (see below), whose sum is σ = 843060096. Its totient is φ = 473292288.

The previous prime is 646055299. The next prime is 646055363. The reversal of 646055335 is 533550646.

It is a cyclic number.

It is not a de Polignac number, because 646055335 - 2¹⁷ = 645924263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 646055294 and 646055303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99567 + ... + 105856.

It is an arithmetic number, because the mean of its divisors is an integer number (52691256).

Almost surely, 2^646055335 is an apocalyptic number.

646055335 is a deficient number, since it is larger than the sum of its proper divisors (197004761).

646055335 is a wasteful number, since it uses less digits than its factorization.

646055335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205482.

The product of its (nonzero) digits is 162000, while the sum is 37.

The square root of 646055335 is about 25417.6185941956. The cubic root of 646055335 is about 864.4832290365.

The spelling of 646055335 in words is "six hundred forty-six million, fifty-five thousand, three hundred thirty-five".