100542398855 has 8 divisors (see below), whose sum is σ = 122303630832. Its totient is φ = 79332084288.

The previous prime is 100542398843. The next prime is 100542398893. The reversal of 100542398855 is 558893245001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100542398855 - 2¹⁸ = 100542136711 is a prime.

It is a super-2 number, since 2×100542398855² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137728949 + ... + 137729678.

It is an arithmetic number, because the mean of its divisors is an integer number (15287953854).

Almost surely, 2^100542398855 is an apocalyptic number.

100542398855 is a deficient number, since it is larger than the sum of its proper divisors (21761231977).

100542398855 is an equidigital number, since it uses as much as digits as its factorization.

100542398855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275458705.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 100542398855 in words is "one hundred billion, five hundred forty-two million, three hundred ninety-eight thousand, eight hundred fifty-five".