4512155010100 has 72 divisors (see below), whose sum is σ = 9928378293120. Its totient is φ = 1779718744320.

The previous prime is 4512155010073. The next prime is 4512155010107. The reversal of 4512155010100 is 10105512154.

It is a super-2 number, since 2×4512155010100² (a number of 26 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4512155010107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2575587 + ... + 3957013.

It is an arithmetic number, because the mean of its divisors is an integer number (137894142960).

Almost surely, 2^{4512155010100} 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 4512155010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4964189146560).

4512155010100 is an abundant number, since it is smaller than the sum of its proper divisors (5416223283020).

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

4512155010100 is a wasteful number, since it uses less digits than its factorization.

4512155010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381897 (or 1381890 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 4512155010100 in words is "four trillion, five hundred twelve billion, one hundred fifty-five million, ten thousand, one hundred".