155440946496 has 224 divisors, whose sum is σ = 475685803008. Its totient is φ = 44273295360.

The previous prime is 155440946471. The next prime is 155440946527. The reversal of 155440946496 is 694649044551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31700781 + ... + 31705683.

Almost surely, 2^155440946496 is an apocalyptic number.

155440946496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155440946496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237842901504).

155440946496 is an abundant number, since it is smaller than the sum of its proper divisors (320244856512).

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

155440946496 is a wasteful number, since it uses less digits than its factorization.

155440946496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829 (or 5819 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 155440946496 in words is "one hundred fifty-five billion, four hundred forty million, nine hundred forty-six thousand, four hundred ninety-six".