155401335408 has 80 divisors (see below), whose sum is σ = 463710963456. Its totient is φ = 44321233920.

The previous prime is 155401335371. The next prime is 155401335421. The reversal of 155401335408 is 804533104551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8647516 + ... + 8665467.

Almost surely, 2^155401335408 is an apocalyptic number.

It is an amenable number.

155401335408 is an abundant number, since it is smaller than the sum of its proper divisors (308309628048).

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

155401335408 is a wasteful number, since it uses less digits than its factorization.

155401335408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17313022 (or 17313016 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

Adding to 155401335408 its reverse (804533104551), we get a palindrome (959934439959).

The spelling of 155401335408 in words is "one hundred fifty-five billion, four hundred one million, three hundred thirty-five thousand, four hundred eight".