11156210542 has 8 divisors (see below), whose sum is σ = 16776468936. Its totient is φ = 5564054232.

The previous prime is 11156210531. The next prime is 11156210557. The reversal of 11156210542 is 24501265111.

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

It is a super-2 number, since 2×11156210542² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11156210542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7024528 + ... + 7026115.

It is an arithmetic number, because the mean of its divisors is an integer number (2097058617).

Almost surely, 2^11156210542 is an apocalyptic number.

11156210542 is a deficient number, since it is larger than the sum of its proper divisors (5620258394).

11156210542 is a wasteful number, since it uses less digits than its factorization.

11156210542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14051042.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 11156210542 its reverse (24501265111), we get a palindrome (35657475653).

The spelling of 11156210542 in words is "eleven billion, one hundred fifty-six million, two hundred ten thousand, five hundred forty-two".