45115122002155 has 4 divisors (see below), whose sum is σ = 54138146402592. Its totient is φ = 36092097601720.

The previous prime is 45115122002009. The next prime is 45115122002173. The reversal of 45115122002155 is 55120022151154.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-45115122002155 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45115122002155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4511512200211 + ... + 4511512200220.

It is an arithmetic number, because the mean of its divisors is an integer number (13534536600648).

Almost surely, 2^{45115122002155} is an apocalyptic number.

45115122002155 is a deficient number, since it is larger than the sum of its proper divisors (9023024400437).

45115122002155 is an equidigital number, since it uses as much as digits as its factorization.

45115122002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023024400436.

The product of its (nonzero) digits is 20000, while the sum is 34.

The spelling of 45115122002155 in words is "forty-five trillion, one hundred fifteen billion, one hundred twenty-two million, two thousand, one hundred fifty-five".