2662237561 has 8 divisors (see below), whose sum is σ = 2762361344. Its totient is φ = 2563004160.

The previous prime is 2662237559. The next prime is 2662237631. The reversal of 2662237561 is 1657322662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2662237561 - 2¹ = 2662237559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2662237531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216501 + ... + 228466.

It is an arithmetic number, because the mean of its divisors is an integer number (345295168).

Almost surely, 2^2662237561 is an apocalyptic number.

It is an amenable number.

2662237561 is a deficient number, since it is larger than the sum of its proper divisors (100123783).

2662237561 is a wasteful number, since it uses less digits than its factorization.

2662237561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445191.

The product of its digits is 181440, while the sum is 40.

The square root of 2662237561 is about 51596.8754964872. The cubic root of 2662237561 is about 1385.9543806697.

The spelling of 2662237561 in words is "two billion, six hundred sixty-two million, two hundred thirty-seven thousand, five hundred sixty-one".