6156071221550 has 24 divisors (see below), whose sum is σ = 11450457982416. Its totient is φ = 2462392895040.

The previous prime is 6156071221529. The next prime is 6156071221577. The reversal of 6156071221550 is 551221706516.

It is a super-2 number, since 2×6156071221550² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6156071221498 and 6156071221507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2751362 + ... + 4458938.

It is an arithmetic number, because the mean of its divisors is an integer number (477102415934).

Almost surely, 2^{6156071221550} is an apocalyptic number.

6156071221550 is a deficient number, since it is larger than the sum of its proper divisors (5294386760866).

6156071221550 is a wasteful number, since it uses less digits than its factorization.

6156071221550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779692 (or 1779687 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 6156071221550 in words is "six trillion, one hundred fifty-six billion, seventy-one million, two hundred twenty-one thousand, five hundred fifty".