6121771665701 has 8 divisors (see below), whose sum is σ = 6130741990464. Its totient is φ = 6112802852640.

The previous prime is 6121771665697. The next prime is 6121771665743. The reversal of 6121771665701 is 1075661771216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6121771665701 - 2² = 6121771665697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6121771665701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121771665781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7858466 + ... + 8602268.

It is an arithmetic number, because the mean of its divisors is an integer number (766342748808).

Almost surely, 2^{6121771665701} is an apocalyptic number.

It is an amenable number.

6121771665701 is a deficient number, since it is larger than the sum of its proper divisors (8970324763).

6121771665701 is a wasteful number, since it uses less digits than its factorization.

6121771665701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755851.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 6121771665701 in words is "six trillion, one hundred twenty-one billion, seven hundred seventy-one million, six hundred sixty-five thousand, seven hundred one".