155143340280 has 576 divisors, whose sum is σ = 572670090720. Its totient is φ = 37643304960.

The previous prime is 155143340243. The next prime is 155143340291. The reversal of 155143340280 is 82043341551.

155143340280 is a `hidden beast` number, since 1 + 551 + 43 + 3 + 40 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 158795152 + ... + 158796128.

Almost surely, 2^155143340280 is an apocalyptic number.

155143340280 is a gapful number since it is divisible by the number (10) 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 155143340280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286335045360).

155143340280 is an abundant number, since it is smaller than the sum of its proper divisors (417526750440).

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

155143340280 is a wasteful number, since it uses less digits than its factorization.

155143340280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 155143340280 in words is "one hundred fifty-five billion, one hundred forty-three million, three hundred forty thousand, two hundred eighty".