3123346641556 has 6 divisors (see below), whose sum is σ = 5465856622730. Its totient is φ = 1561673320776.

The previous prime is 3123346641491. The next prime is 3123346641563. The reversal of 3123346641556 is 6551466433213.

It can be written as a sum of positive squares in only one way, i.e., 2998819524100 + 124527117456 = 1731710^2 + 352884^2 .

It is a super-2 number, since 2×3123346641556² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390418330191 + ... + 390418330198.

Almost surely, 2^{3123346641556} is an apocalyptic number.

It is an amenable number.

3123346641556 is a deficient number, since it is larger than the sum of its proper divisors (2342509981174).

3123346641556 is a wasteful number, since it uses less digits than its factorization.

3123346641556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780836660393 (or 780836660391 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 49.

The spelling of 3123346641556 in words is "three trillion, one hundred twenty-three billion, three hundred forty-six million, six hundred forty-one thousand, five hundred fifty-six".