155751620226 has 16 divisors (see below), whose sum is σ = 312079038528. Its totient is φ = 51821240400.

The previous prime is 155751620131. The next prime is 155751620237. The reversal of 155751620226 is 622026157551.

155751620226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23988070 + ... + 23994561.

It is an arithmetic number, because the mean of its divisors is an integer number (19504939908).

Almost surely, 2^155751620226 is an apocalyptic number.

155751620226 is an abundant number, since it is smaller than the sum of its proper divisors (156327418302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155751620226 is a wasteful number, since it uses less digits than its factorization.

155751620226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47983177.

The product of its (nonzero) digits is 252000, while the sum is 42.

Adding to 155751620226 its reverse (622026157551), we get a palindrome (777777777777).

The spelling of 155751620226 in words is "one hundred fifty-five billion, seven hundred fifty-one million, six hundred twenty thousand, two hundred twenty-six".