4551541231555 has 4 divisors (see below), whose sum is σ = 5461849477872. Its totient is φ = 3641232985240.

The previous prime is 4551541231537. The next prime is 4551541231577. The reversal of 4551541231555 is 5551321451554.

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

It is not a de Polignac number, because 4551541231555 - 2⁹ = 4551541231043 is a prime.

It is a super-2 number, since 2×4551541231555² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

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, 455154123151 + ... + 455154123160.

It is an arithmetic number, because the mean of its divisors is an integer number (1365462369468).

Almost surely, 2^{4551541231555} is an apocalyptic number.

4551541231555 is a deficient number, since it is larger than the sum of its proper divisors (910308246317).

4551541231555 is an equidigital number, since it uses as much as digits as its factorization.

4551541231555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910308246316.

The product of its digits is 1500000, while the sum is 46.

The spelling of 4551541231555 in words is "four trillion, five hundred fifty-one billion, five hundred forty-one million, two hundred thirty-one thousand, five hundred fifty-five".