201606643150 has 48 divisors (see below), whose sum is σ = 413049955968. Its totient is φ = 72599724000.

The previous prime is 201606643127. The next prime is 201606643163. The reversal of 201606643150 is 51346606102.

It is a super-2 number, since 2×201606643150² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1722756 + ... + 1836055.

It is an arithmetic number, because the mean of its divisors is an integer number (8605207416).

Almost surely, 2^201606643150 is an apocalyptic number.

201606643150 is an abundant number, since it is smaller than the sum of its proper divisors (211443312818).

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

201606643150 is a wasteful number, since it uses less digits than its factorization.

201606643150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558937 (or 3558932 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 201606643150 in words is "two hundred one billion, six hundred six million, six hundred forty-three thousand, one hundred fifty".