1204345513155 has 32 divisors (see below), whose sum is σ = 2060111798784. Its totient is φ = 598664941056.

The previous prime is 1204345513141. The next prime is 1204345513159. The reversal of 1204345513155 is 5513155434021.

It is not a de Polignac number, because 1204345513155 - 2⁵ = 1204345513123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1204345513159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22900549 + ... + 22953078.

It is an arithmetic number, because the mean of its divisors is an integer number (64378493712).

Almost surely, 2^{1204345513155} is an apocalyptic number.

1204345513155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1204345513155 is a deficient number, since it is larger than the sum of its proper divisors (855766285629).

1204345513155 is a wasteful number, since it uses less digits than its factorization.

1204345513155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45853755.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 1204345513155 in words is "one trillion, two hundred four billion, three hundred forty-five million, five hundred thirteen thousand, one hundred fifty-five".