55511651156 has 12 divisors (see below), whose sum is σ = 104618111892. Its totient is φ = 25620762048.

The previous prime is 55511651149. The next prime is 55511651203. The reversal of 55511651156 is 65115611555.

It can be written as a sum of positive squares in 2 ways, for example, as 33979023556 + 21532627600 = 184334^2 + 146740^2 .

It is a super-2 number, since 2×55511651156² (a number of 22 digits) contains 22 as substring.

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, 533765825 + ... + 533765928.

It is an arithmetic number, because the mean of its divisors is an integer number (8718175991).

Almost surely, 2^55511651156 is an apocalyptic number.

It is an amenable number.

55511651156 is a deficient number, since it is larger than the sum of its proper divisors (49106460736).

55511651156 is a wasteful number, since it uses less digits than its factorization.

55511651156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067531770 (or 1067531768 counting only the distinct ones).

The product of its digits is 112500, while the sum is 41.

The spelling of 55511651156 in words is "fifty-five billion, five hundred eleven million, six hundred fifty-one thousand, one hundred fifty-six".