1554331131044 has 12 divisors (see below), whose sum is σ = 2720099989068. Its totient is φ = 777159705600.

The previous prime is 1554331131043. The next prime is 1554331131053. The reversal of 1554331131044 is 4401311334551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1499522702500 + 54808428544 = 1224550^2 + 234112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1554331130995 and 1554331131013.

It is not an unprimeable number, because it can be changed into a prime (1554331131043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838397 + ... + 1952324.

It is an arithmetic number, because the mean of its divisors is an integer number (226674999089).

Almost surely, 2^{1554331131044} is an apocalyptic number.

It is an amenable number.

1554331131044 is a deficient number, since it is larger than the sum of its proper divisors (1165768858024).

1554331131044 is a wasteful number, since it uses less digits than its factorization.

1554331131044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929966 (or 2929964 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 1554331131044 its reverse (4401311334551), we get a palindrome (5955642465595).

The spelling of 1554331131044 in words is "one trillion, five hundred fifty-four billion, three hundred thirty-one million, one hundred thirty-one thousand, forty-four".