105421321150155 has 48 divisors (see below), whose sum is σ = 192597963554880. Its totient is φ = 53261658987264.

The previous prime is 105421321150121. The next prime is 105421321150177. The reversal of 105421321150155 is 551051123124501.

105421321150155 is a `hidden beast` number, since 1 + 0 + 5 + 4 + 2 + 132 + 11 + 501 + 5 + 5 = 666.

It is not a de Polignac number, because 105421321150155 - 2¹¹ = 105421321148107 is a prime.

It is a super-2 number, since 2×105421321150155² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 762031039 + ... + 762169368.

It is an arithmetic number, because the mean of its divisors is an integer number (4012457574060).

Almost surely, 2^{105421321150155} is an apocalyptic number.

105421321150155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105421321150155 is a deficient number, since it is larger than the sum of its proper divisors (87176642404725).

105421321150155 is a wasteful number, since it uses less digits than its factorization.

105421321150155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524200500 (or 1524200497 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

Adding to 105421321150155 its reverse (551051123124501), we get a palindrome (656472444274656).

The spelling of 105421321150155 in words is "one hundred five trillion, four hundred twenty-one billion, three hundred twenty-one million, one hundred fifty thousand, one hundred fifty-five".