6121553341845 has 16 divisors (see below), whose sum is σ = 9853134963840. Its totient is φ = 3245278576704.

The previous prime is 6121553341831. The next prime is 6121553341877. The reversal of 6121553341845 is 5481433551216.

It is not a de Polignac number, because 6121553341845 - 2⁶ = 6121553341781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6121553341794 and 6121553341803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1221864430 + ... + 1221869439.

It is an arithmetic number, because the mean of its divisors is an integer number (615820935240).

Almost surely, 2^{6121553341845} is an apocalyptic number.

It is an amenable number.

6121553341845 is a deficient number, since it is larger than the sum of its proper divisors (3731581621995).

6121553341845 is a wasteful number, since it uses less digits than its factorization.

6121553341845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443734044.

The product of its digits is 1728000, while the sum is 48.

The spelling of 6121553341845 in words is "six trillion, one hundred twenty-one billion, five hundred fifty-three million, three hundred forty-one thousand, eight hundred forty-five".