11156505634 has 16 divisors (see below), whose sum is σ = 16916407200. Its totient is φ = 5517765504.

The previous prime is 11156505589. The next prime is 11156505683. The reversal of 11156505634 is 43650565111.

It is a super-2 number, since 2×11156505634² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11156505593 and 11156505602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369397 + ... + 398455.

It is an arithmetic number, because the mean of its divisors is an integer number (1057275450).

Almost surely, 2^11156505634 is an apocalyptic number.

11156505634 is a deficient number, since it is larger than the sum of its proper divisors (5759901566).

11156505634 is a wasteful number, since it uses less digits than its factorization.

11156505634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31137.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 11156505634 in words is "eleven billion, one hundred fifty-six million, five hundred five thousand, six hundred thirty-four".