5111550001556 has 48 divisors (see below), whose sum is σ = 9341606776320. Its totient is φ = 2445669283200.

The previous prime is 5111550001553. The next prime is 5111550001577. The reversal of 5111550001556 is 6551000551115.

It is a super-2 number, since 2×5111550001556² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111550001553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346916 + ... + 3216123.

It is an arithmetic number, because the mean of its divisors is an integer number (194616807840).

Almost surely, 2^{5111550001556} is an apocalyptic number.

It is an amenable number.

5111550001556 is a deficient number, since it is larger than the sum of its proper divisors (4230056774764).

5111550001556 is a wasteful number, since it uses less digits than its factorization.

5111550001556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563264 (or 3563262 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 5111550001556 in words is "five trillion, one hundred eleven billion, five hundred fifty million, one thousand, five hundred fifty-six".