1055573778372 has 24 divisors (see below), whose sum is σ = 2520284681376. Its totient is φ = 343675183488.

The previous prime is 1055573778313. The next prime is 1055573778377. The reversal of 1055573778372 is 2738773755501.

It is a super-2 number, since 2×1055573778372² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055573778377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022842293 + ... + 1022843324.

It is an arithmetic number, because the mean of its divisors is an integer number (105011861724).

Almost surely, 2^{1055573778372} is an apocalyptic number.

1055573778372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1055573778372 is an abundant number, since it is smaller than the sum of its proper divisors (1464710903004).

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

1055573778372 is a wasteful number, since it uses less digits than its factorization.

1055573778372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045685667 (or 2045685665 counting only the distinct ones).

The product of its (nonzero) digits is 43218000, while the sum is 60.

The spelling of 1055573778372 in words is "one trillion, fifty-five billion, five hundred seventy-three million, seven hundred seventy-eight thousand, three hundred seventy-two".