1051055560998 has 96 divisors (see below), whose sum is σ = 2362545855072. Its totient is φ = 337434854400.

The previous prime is 1051055560991. The next prime is 1051055561029. The reversal of 1051055560998 is 8990655501501.

1051055560998 is a `hidden beast` number, since 10 + 5 + 10 + 5 + 5 + 5 + 609 + 9 + 8 = 666.

It is a super-4 number, since 4×1051055560998⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051055560991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61778313 + ... + 61795323.

It is an arithmetic number, because the mean of its divisors is an integer number (24609852657).

Almost surely, 2^{1051055560998} is an apocalyptic number.

1051055560998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051055560998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181272927536).

1051055560998 is an abundant number, since it is smaller than the sum of its proper divisors (1311490294074).

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

1051055560998 is a wasteful number, since it uses less digits than its factorization.

1051055560998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17990 (or 17987 counting only the distinct ones).

The product of its (nonzero) digits is 2430000, while the sum is 54.

The spelling of 1051055560998 in words is "one trillion, fifty-one billion, fifty-five million, five hundred sixty thousand, nine hundred ninety-eight".