155421762041 has 32 divisors (see below), whose sum is σ = 202004275200. Its totient is φ = 116123906880.

The previous prime is 155421762029. The next prime is 155421762121. The reversal of 155421762041 is 140267124551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155421762041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155421761986 and 155421762004.

It is not an unprimeable number, because it can be changed into a prime (155421762341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393200 + ... + 682238.

It is an arithmetic number, because the mean of its divisors is an integer number (6312633600).

Almost surely, 2^155421762041 is an apocalyptic number.

It is an amenable number.

155421762041 is a deficient number, since it is larger than the sum of its proper divisors (46582513159).

155421762041 is a wasteful number, since it uses less digits than its factorization.

155421762041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289389.

The product of its (nonzero) digits is 67200, while the sum is 38.

Adding to 155421762041 its reverse (140267124551), we get a palindrome (295688886592).

The spelling of 155421762041 in words is "one hundred fifty-five billion, four hundred twenty-one million, seven hundred sixty-two thousand, forty-one".