155163021541 has 12 divisors (see below), whose sum is σ = 170584910496. Its totient is φ = 141029320520.

The previous prime is 155163021527. The next prime is 155163021583. The reversal of 155163021541 is 145120361551.

It is not a de Polignac number, because 155163021541 - 2⁷ = 155163021413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155163021497 and 155163021506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155163021511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498216 + ... + 747358.

It is an arithmetic number, because the mean of its divisors is an integer number (14215409208).

Almost surely, 2^155163021541 is an apocalyptic number.

155163021541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155163021541 is a deficient number, since it is larger than the sum of its proper divisors (15421888955).

155163021541 is a wasteful number, since it uses less digits than its factorization.

155163021541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254312 (or 254301 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 155163021541 in words is "one hundred fifty-five billion, one hundred sixty-three million, twenty-one thousand, five hundred forty-one".