6161711051021 has 4 divisors (see below), whose sum is σ = 6161716503552. Its totient is φ = 6161705598492.

The previous prime is 6161711050997. The next prime is 6161711051059. The reversal of 6161711051021 is 1201501171616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6161711051021 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 (6161711081021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327821 + ... + 3525746.

It is an arithmetic number, because the mean of its divisors is an integer number (1540429125888).

Almost surely, 2^{6161711051021} is an apocalyptic number.

It is an amenable number.

6161711051021 is a deficient number, since it is larger than the sum of its proper divisors (5452531).

6161711051021 is a wasteful number, since it uses less digits than its factorization.

6161711051021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452530.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 6161711051021 in words is "six trillion, one hundred sixty-one billion, seven hundred eleven million, fifty-one thousand, twenty-one".