611161006555 has 8 divisors (see below), whose sum is σ = 800065317744. Its totient is φ = 444480732000.

The previous prime is 611161006553. The next prime is 611161006583. The reversal of 611161006555 is 555600161116.

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

It is not a de Polignac number, because 611161006555 - 2¹ = 611161006553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611161006553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5556009096 + ... + 5556009205.

It is an arithmetic number, because the mean of its divisors is an integer number (100008164718).

Almost surely, 2^611161006555 is an apocalyptic number.

611161006555 is a deficient number, since it is larger than the sum of its proper divisors (188904311189).

611161006555 is a wasteful number, since it uses less digits than its factorization.

611161006555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112018317.

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

The spelling of 611161006555 in words is "six hundred eleven billion, one hundred sixty-one million, six thousand, five hundred fifty-five".