155054500000 has 336 divisors, whose sum is σ = 405163563840. Its totient is φ = 58291200000.

The previous prime is 155054499979. The next prime is 155054500043. The reversal of 155054500000 is 5450551.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1115499931 + ... + 1115500069.

It is an arithmetic number, because the mean of its divisors is an integer number (1205843940).

Almost surely, 2^155054500000 is an apocalyptic number.

155054500000 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 155054500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202581781920).

155054500000 is an abundant number, since it is smaller than the sum of its proper divisors (250109063840).

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

155054500000 is an frugal number, since it uses more digits than its factorization.

155054500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

Adding to 155054500000 its reverse (5450551), we get a palindrome (155059950551).

The spelling of 155054500000 in words is "one hundred fifty-five billion, fifty-four million, five hundred thousand".