1550404221134 has 16 divisors (see below), whose sum is σ = 2462534816400. Its totient is φ = 729564027264.

The previous prime is 1550404221127. The next prime is 1550404221241. The reversal of 1550404221134 is 4311224040551.

It is a self number, because there is not a number n which added to its sum of digits gives 1550404221134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517649 + ... + 1835420.

It is an arithmetic number, because the mean of its divisors is an integer number (153908426025).

Almost surely, 2^{1550404221134} is an apocalyptic number.

1550404221134 is a deficient number, since it is larger than the sum of its proper divisors (912130595266).

1550404221134 is a wasteful number, since it uses less digits than its factorization.

1550404221134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372467.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 1550404221134 its reverse (4311224040551), we get a palindrome (5861628261685).

The spelling of 1550404221134 in words is "one trillion, five hundred fifty billion, four hundred four million, two hundred twenty-one thousand, one hundred thirty-four".