646006124 has 6 divisors (see below), whose sum is σ = 1130510724. Its totient is φ = 323003060.

The previous prime is 646006087. The next prime is 646006139. The reversal of 646006124 is 421600646.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80750762 + ... + 80750769.

It is an arithmetic number, because the mean of its divisors is an integer number (188418454).

Almost surely, 2^646006124 is an apocalyptic number.

It is an amenable number.

646006124 is a deficient number, since it is larger than the sum of its proper divisors (484504600).

646006124 is a wasteful number, since it uses less digits than its factorization.

646006124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161501535 (or 161501533 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 646006124 is about 25416.6505267708. The cubic root of 646006124 is about 864.4612788195.

The spelling of 646006124 in words is "six hundred forty-six million, six thousand, one hundred twenty-four".