100551055055550 has 96 divisors (see below), whose sum is σ = 274729738207104. Its totient is φ = 24134666640000.

The previous prime is 100551055055533. The next prime is 100551055055551. The reversal of 100551055055550 is 55550550155001.

It is a super-3 number, since 3×100551055055550³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100551055055551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 301516684 + ... + 301849983.

It is an arithmetic number, because the mean of its divisors is an integer number (2861768106324).

Almost surely, 2^{100551055055550} is an apocalyptic number.

100551055055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100551055055550 is an abundant number, since it is smaller than the sum of its proper divisors (174178683151554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100551055055550 is a wasteful number, since it uses less digits than its factorization.

100551055055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603366794 (or 603366789 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 42.

The spelling of 100551055055550 in words is "one hundred trillion, five hundred fifty-one billion, fifty-five million, fifty-five thousand, five hundred fifty".