6111261554251 has 4 divisors (see below), whose sum is σ = 6984298919152. Its totient is φ = 5238224189352.

The previous prime is 6111261554201. The next prime is 6111261554257. The reversal of 6111261554251 is 1524551621116.

It is a happy number.

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

It is not a de Polignac number, because 6111261554251 - 2²⁹ = 6110724683339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6111261554257) 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, 436518682440 + ... + 436518682453.

It is an arithmetic number, because the mean of its divisors is an integer number (1746074729788).

Almost surely, 2^{6111261554251} is an apocalyptic number.

6111261554251 is a deficient number, since it is larger than the sum of its proper divisors (873037364901).

6111261554251 is an equidigital number, since it uses as much as digits as its factorization.

6111261554251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873037364900.

The product of its digits is 72000, while the sum is 40.

The spelling of 6111261554251 in words is "six trillion, one hundred eleven billion, two hundred sixty-one million, five hundred fifty-four thousand, two hundred fifty-one".