5561100155 has 8 divisors (see below), whose sum is σ = 7186652592. Its totient is φ = 4106658528.

The previous prime is 5561100143. The next prime is 5561100227. The reversal of 5561100155 is 5510011655.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5561100155 - 2⁶ = 5561100091 is a prime.

It is a super-3 number, since 3×5561100155³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

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, 42777629 + ... + 42777758.

It is an arithmetic number, because the mean of its divisors is an integer number (898331574).

Almost surely, 2^5561100155 is an apocalyptic number.

5561100155 is a deficient number, since it is larger than the sum of its proper divisors (1625552437).

5561100155 is a wasteful number, since it uses less digits than its factorization.

5561100155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85555405.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 5561100155 is about 74572.7842781802. The cubic root of 5561100155 is about 1771.6866210110.

The spelling of 5561100155 in words is "five billion, five hundred sixty-one million, one hundred thousand, one hundred fifty-five".