201055646 has 16 divisors (see below), whose sum is σ = 339614208. Its totient is φ = 88440600.

The previous prime is 201055633. The next prime is 201055667. The reversal of 201055646 is 646550102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146720 + ... + 148083.

It is an arithmetic number, because the mean of its divisors is an integer number (21225888).

Almost surely, 2^201055646 is an apocalyptic number.

201055646 is a deficient number, since it is larger than the sum of its proper divisors (138558562).

201055646 is a wasteful number, since it uses less digits than its factorization.

201055646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294847.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 201055646 is about 14179.4092260573. The cubic root of 201055646 is about 585.8306518689.

The spelling of 201055646 in words is "two hundred one million, fifty-five thousand, six hundred forty-six".