100061211550 has 48 divisors (see below), whose sum is σ = 186671302272. Its totient is φ = 39904783200.

The previous prime is 100061211539. The next prime is 100061211563. The reversal of 100061211550 is 55112160001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46953985 + ... + 46956115.

It is an arithmetic number, because the mean of its divisors is an integer number (3888985464).

Almost surely, 2^100061211550 is an apocalyptic number.

100061211550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100061211550 is a deficient number, since it is larger than the sum of its proper divisors (86610090722).

100061211550 is a wasteful number, since it uses less digits than its factorization.

100061211550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513 (or 4508 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 100061211550 its reverse (55112160001), we get a palindrome (155173371551).

The spelling of 100061211550 in words is "one hundred billion, sixty-one million, two hundred eleven thousand, five hundred fifty".