11605631623 has 8 divisors (see below), whose sum is σ = 12220700720. Its totient is φ = 10990987200.

The previous prime is 11605631581. The next prime is 11605631627. The reversal of 11605631623 is 32613650611.

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 11605631623 - 2²⁹ = 11068760711 is a prime.

It is a super-2 number, since 2×11605631623² (a number of 21 digits) 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 (11605631627) 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, 49278 + ... + 160123.

It is an arithmetic number, because the mean of its divisors is an integer number (1527587590).

Almost surely, 2^11605631623 is an apocalyptic number.

11605631623 is a deficient number, since it is larger than the sum of its proper divisors (615069097).

11605631623 is a wasteful number, since it uses less digits than its factorization.

11605631623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212337.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 11605631623 in words is "eleven billion, six hundred five million, six hundred thirty-one thousand, six hundred twenty-three".