155254312704 has 144 divisors (see below), whose sum is σ = 440194204800. Its totient is φ = 48436604928.

The previous prime is 155254312667. The next prime is 155254312709. The reversal of 155254312704 is 407213452551.

It is a super-2 number, since 2×155254312704² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155254312709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147042 + ... + 1275230.

It is an arithmetic number, because the mean of its divisors is an integer number (3056904200).

Almost surely, 2^155254312704 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 155254312704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220097102400).

155254312704 is an abundant number, since it is smaller than the sum of its proper divisors (284939892096).

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

155254312704 is a wasteful number, since it uses less digits than its factorization.

155254312704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128310 (or 128296 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 155254312704 in words is "one hundred fifty-five billion, two hundred fifty-four million, three hundred twelve thousand, seven hundred four".