155246434464 has 192 divisors, whose sum is σ = 449442846720. Its totient is φ = 46918572800.

The previous prime is 155246434463. The next prime is 155246434481. The reversal of 155246434464 is 464434642551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (155246434463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55070047 + ... + 55072865.

It is an arithmetic number, because the mean of its divisors is an integer number (2340848160).

Almost surely, 2^155246434464 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 155246434464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224721423360).

155246434464 is an abundant number, since it is smaller than the sum of its proper divisors (294196412256).

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

155246434464 is a wasteful number, since it uses less digits than its factorization.

155246434464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296 (or 3266 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 48.

The spelling of 155246434464 in words is "one hundred fifty-five billion, two hundred forty-six million, four hundred thirty-four thousand, four hundred sixty-four".