988551269555 has 16 divisors (see below), whose sum is σ = 1188295920000. Its totient is φ = 789485918208.

The previous prime is 988551269551. The next prime is 988551269567. The reversal of 988551269555 is 555962155889.

It is a cyclic number.

It is not a de Polignac number, because 988551269555 - 2² = 988551269551 is a prime.

It is a super-2 number, since 2×988551269555² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988551269551) 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, 6816479 + ... + 6959991.

It is an arithmetic number, because the mean of its divisors is an integer number (74268495000).

Almost surely, 2^988551269555 is an apocalyptic number.

988551269555 is a deficient number, since it is larger than the sum of its proper divisors (199744650445).

988551269555 is a wasteful number, since it uses less digits than its factorization.

988551269555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145870.

The product of its digits is 194400000, while the sum is 68.

The spelling of 988551269555 in words is "nine hundred eighty-eight billion, five hundred fifty-one million, two hundred sixty-nine thousand, five hundred fifty-five".