155050243103664 has 280 divisors, whose sum is σ = 458315824392000. Its totient is φ = 50777137077120.

The previous prime is 155050243103663. The next prime is 155050243103681. The reversal of 155050243103664 is 466301342050551.

It is a happy number.

155050243103664 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 502 + 43 + 10 + 36 + 64 = 666.

It is not an unprimeable number, because it can be changed into a prime (155050243103663) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1169144719 + ... + 1169277329.

Almost surely, 2^{155050243103664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155050243103664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229157912196000).

155050243103664 is an abundant number, since it is smaller than the sum of its proper divisors (303265581288336).

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

155050243103664 is a wasteful number, since it uses less digits than its factorization.

155050243103664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134395 (or 134374 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 155050243103664 in words is "one hundred fifty-five trillion, fifty billion, two hundred forty-three million, one hundred three thousand, six hundred sixty-four".