1606266631 has 8 divisors (see below), whose sum is σ = 1712211200. Its totient is φ = 1502462520.

The previous prime is 1606266611. The next prime is 1606266647. The reversal of 1606266631 is 1366626061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606266631 is a prime.

It is a super-2 number, since 2×1606266631² = 5160184979728180322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606266611) 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, 533565 + ... + 536566.

It is an arithmetic number, because the mean of its divisors is an integer number (214026400).

Almost surely, 2^1606266631 is an apocalyptic number.

1606266631 is a deficient number, since it is larger than the sum of its proper divisors (105944569).

1606266631 is a wasteful number, since it uses less digits than its factorization.

1606266631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070229.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1606266631 is about 40078.2563368218. The cubic root of 1606266631 is about 1171.1320844181.

The spelling of 1606266631 in words is "one billion, six hundred six million, two hundred sixty-six thousand, six hundred thirty-one".