11506022638 has 16 divisors (see below), whose sum is σ = 18829770624. Its totient is φ = 5229528760.

The previous prime is 11506022621. The next prime is 11506022639. The reversal of 11506022638 is 83622060511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506022639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348231 + ... + 379837.

It is an arithmetic number, because the mean of its divisors is an integer number (1176860664).

Almost surely, 2^11506022638 is an apocalyptic number.

11506022638 is a deficient number, since it is larger than the sum of its proper divisors (7323747986).

11506022638 is a wasteful number, since it uses less digits than its factorization.

11506022638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48167.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 11506022638 in words is "eleven billion, five hundred six million, twenty-two thousand, six hundred thirty-eight".