11642023563 has 16 divisors (see below), whose sum is σ = 15860883456. Its totient is φ = 7592421440.

The previous prime is 11642023559. The next prime is 11642023571. The reversal of 11642023563 is 36532024611.

It is a cyclic number.

It is not a de Polignac number, because 11642023563 - 2² = 11642023559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11642023553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278095 + ... + 317207.

It is an arithmetic number, because the mean of its divisors is an integer number (991305216).

Almost surely, 2^11642023563 is an apocalyptic number.

11642023563 is a deficient number, since it is larger than the sum of its proper divisors (4218859893).

11642023563 is a wasteful number, since it uses less digits than its factorization.

11642023563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41274.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 11642023563 in words is "eleven billion, six hundred forty-two million, twenty-three thousand, five hundred sixty-three".