1553551121150 has 48 divisors (see below), whose sum is σ = 3302697783456. Its totient is φ = 532599006720.

The previous prime is 1553551121123. The next prime is 1553551121153. The reversal of 1553551121150 is 511211553551.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1553551121150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553551121153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3889562 + ... + 4270338.

It is an arithmetic number, because the mean of its divisors is an integer number (68806203822).

Almost surely, 2^{1553551121150} is an apocalyptic number.

1553551121150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1553551121150 is an abundant number, since it is smaller than the sum of its proper divisors (1749146662306).

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

1553551121150 is a wasteful number, since it uses less digits than its factorization.

1553551121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392453 (or 392448 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 1553551121150 in words is "one trillion, five hundred fifty-three billion, five hundred fifty-one million, one hundred twenty-one thousand, one hundred fifty".