6111551516101 has 4 divisors (see below), whose sum is σ = 6174557201932. Its totient is φ = 6048545830272.

The previous prime is 6111551516051. The next prime is 6111551516249. The reversal of 6111551516101 is 1016151551116.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2032064505025 + 4079487011076 = 1425505^2 + 2019774^2 .

It is a cyclic number.

It is not a de Polignac number, because 6111551516101 - 2¹⁹ = 6111550991813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6111551516401) 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, 31502842770 + ... + 31502842963.

It is an arithmetic number, because the mean of its divisors is an integer number (1543639300483).

Almost surely, 2^{6111551516101} is an apocalyptic number.

It is an amenable number.

6111551516101 is a deficient number, since it is larger than the sum of its proper divisors (63005685831).

6111551516101 is an equidigital number, since it uses as much as digits as its factorization.

6111551516101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63005685830.

The product of its (nonzero) digits is 4500, while the sum is 34.

The spelling of 6111551516101 in words is "six trillion, one hundred eleven billion, five hundred fifty-one million, five hundred sixteen thousand, one hundred one".