55615661110 has 32 divisors (see below), whose sum is σ = 101294367264. Its totient is φ = 21983520000.

The previous prime is 55615661069. The next prime is 55615661119. The reversal of 55615661110 is 1116651655.

It is a self number, because there is not a number n which added to its sum of digits gives 55615661110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55615661119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473365 + ... + 579055.

It is an arithmetic number, because the mean of its divisors is an integer number (3165448977).

Almost surely, 2^55615661110 is an apocalyptic number.

55615661110 is a deficient number, since it is larger than the sum of its proper divisors (45678706154).

55615661110 is a wasteful number, since it uses less digits than its factorization.

55615661110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106320.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 55615661110 in words is "fifty-five billion, six hundred fifteen million, six hundred sixty-one thousand, one hundred ten".