1552045450444 has 48 divisors (see below), whose sum is σ = 2895504252480. Its totient is φ = 726611056640.

The previous prime is 1552045450433. The next prime is 1552045450447. The reversal of 1552045450444 is 4440545402551.

It is a self number, because there is not a number n which added to its sum of digits gives 1552045450444.

It is not an unprimeable number, because it can be changed into a prime (1552045450447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182797 + ... + 1771300.

It is an arithmetic number, because the mean of its divisors is an integer number (60323005260).

Almost surely, 2^{1552045450444} is an apocalyptic number.

It is an amenable number.

1552045450444 is a deficient number, since it is larger than the sum of its proper divisors (1343458802036).

1552045450444 is a wasteful number, since it uses less digits than its factorization.

1552045450444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954338 (or 1954336 counting only the distinct ones).

The product of its (nonzero) digits is 1280000, while the sum is 43.

The spelling of 1552045450444 in words is "one trillion, five hundred fifty-two billion, forty-five million, four hundred fifty thousand, four hundred forty-four".