6155942909091 has 4 divisors (see below), whose sum is σ = 8207923878792. Its totient is φ = 4103961939392.

The previous prime is 6155942909087. The next prime is 6155942909099. The reversal of 6155942909091 is 1909092495516.

6155942909091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6155942909091 - 2² = 6155942909087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6155942909099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025990484846 + ... + 1025990484851.

It is an arithmetic number, because the mean of its divisors is an integer number (2051980969698).

Almost surely, 2^{6155942909091} is an apocalyptic number.

6155942909091 is a deficient number, since it is larger than the sum of its proper divisors (2051980969701).

6155942909091 is a wasteful number, since it uses less digits than its factorization.

6155942909091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051980969700.

The product of its (nonzero) digits is 7873200, while the sum is 60.

The spelling of 6155942909091 in words is "six trillion, one hundred fifty-five billion, nine hundred forty-two million, nine hundred nine thousand, ninety-one".