155426121624648 has 128 divisors (see below), whose sum is σ = 470236156876800. Its totient is φ = 41791749694464.

The previous prime is 155426121624647. The next prime is 155426121624661. The reversal of 155426121624648 is 846426121624551.

155426121624648 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155426121624648² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155426121624647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31818661 + ... + 36376907.

It is an arithmetic number, because the mean of its divisors is an integer number (3673719975600).

Almost surely, 2^{155426121624648} is an apocalyptic number.

It is an amenable number.

155426121624648 is an abundant number, since it is smaller than the sum of its proper divisors (314810035252152).

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

155426121624648 is a wasteful number, since it uses less digits than its factorization.

155426121624648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570219 (or 4570215 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 57.

The spelling of 155426121624648 in words is "one hundred fifty-five trillion, four hundred twenty-six billion, one hundred twenty-one million, six hundred twenty-four thousand, six hundred forty-eight".