155664833121741 has 16 divisors (see below), whose sum is σ = 208928161846976. Its totient is φ = 103089650144256.

The previous prime is 155664833121737. The next prime is 155664833121841. The reversal of 155664833121741 is 147121338466551.

It is a happy number.

It is not a de Polignac number, because 155664833121741 - 2² = 155664833121737 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 (155664833121841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76524820 + ... + 78532653.

It is an arithmetic number, because the mean of its divisors is an integer number (13058010115436).

Almost surely, 2^{155664833121741} is an apocalyptic number.

It is an amenable number.

155664833121741 is a deficient number, since it is larger than the sum of its proper divisors (53263328725235).

155664833121741 is a wasteful number, since it uses less digits than its factorization.

155664833121741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155059692.

The product of its digits is 14515200, while the sum is 57.

The spelling of 155664833121741 in words is "one hundred fifty-five trillion, six hundred sixty-four billion, eight hundred thirty-three million, one hundred twenty-one thousand, seven hundred forty-one".