1550557319094 has 48 divisors (see below), whose sum is σ = 3840155504640. Its totient is φ = 442937887920.

The previous prime is 1550557319083. The next prime is 1550557319111. The reversal of 1550557319094 is 4909137550551.

It is a happy number.

1550557319094 is a `hidden beast` number, since 1 + 5 + 50 + 5 + 573 + 19 + 0 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1550557319094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374262 + ... + 1800329.

It is an arithmetic number, because the mean of its divisors is an integer number (80003239680).

Almost surely, 2^{1550557319094} is an apocalyptic number.

1550557319094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1550557319094 is an abundant number, since it is smaller than the sum of its proper divisors (2289598185546).

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

1550557319094 is a wasteful number, since it uses less digits than its factorization.

1550557319094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180265 (or 2180262 counting only the distinct ones).

The product of its (nonzero) digits is 4252500, while the sum is 54.

The spelling of 1550557319094 in words is "one trillion, five hundred fifty billion, five hundred fifty-seven million, three hundred nineteen thousand, ninety-four".