4512256522155 has 48 divisors (see below), whose sum is σ = 8074095344640. Its totient is φ = 2328747220800.

The previous prime is 4512256522139. The next prime is 4512256522171. The reversal of 4512256522155 is 5512256522154.

4512256522155 is a `hidden beast` number, since 4 + 5 + 1 + 22 + 56 + 522 + 1 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (4512256522139) and next prime (4512256522171).

It is not a de Polignac number, because 4512256522155 - 2⁴ = 4512256522139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4512256522155.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21841936 + ... + 22047554.

It is an arithmetic number, because the mean of its divisors is an integer number (168210319680).

Almost surely, 2^{4512256522155} is an apocalyptic number.

4512256522155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4512256522155 is a deficient number, since it is larger than the sum of its proper divisors (3561838822485).

4512256522155 is a wasteful number, since it uses less digits than its factorization.

4512256522155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221392 (or 221389 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

Subtracting 4512256522155 from its reverse (5512256522154), we obtain a palindrome (999999999999).

The spelling of 4512256522155 in words is "four trillion, five hundred twelve billion, two hundred fifty-six million, five hundred twenty-two thousand, one hundred fifty-five".