155644552426 has 8 divisors (see below), whose sum is σ = 254691085824. Its totient is φ = 70747523820.

The previous prime is 155644552423. The next prime is 155644552429. The reversal of 155644552426 is 624255446551.

It is an interprime number because it is at equal distance from previous prime (155644552423) and next prime (155644552429).

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

It is a self number, because there is not a number n which added to its sum of digits gives 155644552426.

It is not an unprimeable number, because it can be changed into a prime (155644552421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537376170 + ... + 3537376213.

It is an arithmetic number, because the mean of its divisors is an integer number (31836385728).

Almost surely, 2^155644552426 is an apocalyptic number.

155644552426 is a deficient number, since it is larger than the sum of its proper divisors (99046533398).

155644552426 is a wasteful number, since it uses less digits than its factorization.

155644552426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074752396.

The product of its digits is 5760000, while the sum is 49.

Adding to 155644552426 its reverse (624255446551), we get a palindrome (779899998977).

The spelling of 155644552426 in words is "one hundred fifty-five billion, six hundred forty-four million, five hundred fifty-two thousand, four hundred twenty-six".