155554041422231 has 16 divisors (see below), whose sum is σ = 158775649653600. Its totient is φ = 152343297699840.

The previous prime is 155554041422183. The next prime is 155554041422249. The reversal of 155554041422231 is 132224140455551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155554041422231 is a prime.

It is a super-2 number, since 2×155554041422231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155554041422531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63909431 + ... + 66298743.

It is an arithmetic number, because the mean of its divisors is an integer number (9923478103350).

Almost surely, 2^{155554041422231} is an apocalyptic number.

155554041422231 is a deficient number, since it is larger than the sum of its proper divisors (3221608231369).

155554041422231 is a wasteful number, since it uses less digits than its factorization.

155554041422231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391586.

The product of its (nonzero) digits is 960000, while the sum is 44.

Adding to 155554041422231 its reverse (132224140455551), we get a palindrome (287778181877782).

The spelling of 155554041422231 in words is "one hundred fifty-five trillion, five hundred fifty-four billion, forty-one million, four hundred twenty-two thousand, two hundred thirty-one".