1002154345500 has 288 divisors, whose sum is σ = 3703340729088. Its totient is φ = 208239696000.

The previous prime is 1002154345499. The next prime is 1002154345529. The reversal of 1002154345500 is 55434512001.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 188739 + ... + 1428261.

It is an arithmetic number, because the mean of its divisors is an integer number (12858821976).

Almost surely, 2^{1002154345500} is an apocalyptic number.

1002154345500 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 1002154345500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1851670364544).

1002154345500 is an abundant number, since it is smaller than the sum of its proper divisors (2701186383588).

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

1002154345500 is a wasteful number, since it uses less digits than its factorization.

1002154345500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239570 (or 1239551 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1002154345500 its reverse (55434512001), we get a palindrome (1057588857501).

The spelling of 1002154345500 in words is "one trillion, two billion, one hundred fifty-four million, three hundred forty-five thousand, five hundred".