1550642445234 has 96 divisors (see below), whose sum is σ = 3489522192000. Its totient is φ = 497057783040.

The previous prime is 1550642445221. The next prime is 1550642445269. The reversal of 1550642445234 is 4325442460551.

It is a happy number.

1550642445234 is a `hidden beast` number, since 1 + 550 + 6 + 4 + 2 + 44 + 52 + 3 + 4 = 666.

It is a super-2 number, since 2×1550642445234² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1550642445234.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 250140867 + ... + 250147065.

It is an arithmetic number, because the mean of its divisors is an integer number (36349189500).

Almost surely, 2^{1550642445234} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550642445234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1744761096000).

1550642445234 is an abundant number, since it is smaller than the sum of its proper divisors (1938879746766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550642445234 is a wasteful number, since it uses less digits than its factorization.

1550642445234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080 (or 8077 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 45.

The spelling of 1550642445234 in words is "one trillion, five hundred fifty billion, six hundred forty-two million, four hundred forty-five thousand, two hundred thirty-four".