155405301000 has 64 divisors (see below), whose sum is σ = 484864548480. Its totient is φ = 41441412800.

The previous prime is 155405300993. The next prime is 155405301001. The reversal of 155405301000 is 103504551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (155405301001) 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, 25897884 + ... + 25903883.

It is an arithmetic number, because the mean of its divisors is an integer number (7576008570).

Almost surely, 2^155405301000 is an apocalyptic number.

155405301000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155405301000 is an abundant number, since it is smaller than the sum of its proper divisors (329459247480).

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

155405301000 is a wasteful number, since it uses less digits than its factorization.

155405301000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51801791 (or 51801777 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 155405301000 its reverse (103504551), we get a palindrome (155508805551).

The spelling of 155405301000 in words is "one hundred fifty-five billion, four hundred five million, three hundred one thousand".