2001659622 has 16 divisors (see below), whose sum is σ = 4006029312. Its totient is φ = 666768200.

The previous prime is 2001659587. The next prime is 2001659659. The reversal of 2001659622 is 2269561002.

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, 103254 + ... + 121097.

It is an arithmetic number, because the mean of its divisors is an integer number (250376832).

Almost surely, 2^2001659622 is an apocalyptic number.

2001659622 is an abundant number, since it is smaller than the sum of its proper divisors (2004369690).

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

2001659622 is a wasteful number, since it uses less digits than its factorization.

2001659622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225843.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2001659622 is about 44739.9108403224. The cubic root of 2001659622 is about 1260.2694523254.

The spelling of 2001659622 in words is "two billion, one million, six hundred fifty-nine thousand, six hundred twenty-two".