11506320542 has 16 divisors (see below), whose sum is σ = 18337674240. Its totient is φ = 5399422488.

The previous prime is 11506320521. The next prime is 11506320547. The reversal of 11506320542 is 24502360511.

11506320542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506320547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410878 + ... + 1419009.

It is an arithmetic number, because the mean of its divisors is an integer number (1146104640).

Almost surely, 2^11506320542 is an apocalyptic number.

11506320542 is a deficient number, since it is larger than the sum of its proper divisors (6831353698).

11506320542 is a wasteful number, since it uses less digits than its factorization.

11506320542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830015.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 11506320542 in words is "eleven billion, five hundred six million, three hundred twenty thousand, five hundred forty-two".