155433291648 has 64 divisors (see below), whose sum is σ = 420659730000. Its totient is φ = 50833522688.

The previous prime is 155433291647. The next prime is 155433291677. The reversal of 155433291648 is 846192334551.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 155433291648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155433291647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3798273 + ... + 3838976.

Almost surely, 2^155433291648 is an apocalyptic number.

It is an amenable number.

155433291648 is an abundant number, since it is smaller than the sum of its proper divisors (265226438352).

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

155433291648 is an equidigital number, since it uses as much as digits as its factorization.

155433291648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637319 (or 7637307 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 155433291648 in words is "one hundred fifty-five billion, four hundred thirty-three million, two hundred ninety-one thousand, six hundred forty-eight".