1055721564383 has 8 divisors (see below), whose sum is σ = 1073712426000. Its totient is φ = 1037733945408.

The previous prime is 1055721564371. The next prime is 1055721564451. The reversal of 1055721564383 is 3834651275501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055721564383 - 2¹⁴ = 1055721547999 is a prime.

It is a super-2 number, since 2×1055721564383² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025721564383) 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, 149408 + ... + 1460741.

It is an arithmetic number, because the mean of its divisors is an integer number (134214053250).

Almost surely, 2^{1055721564383} is an apocalyptic number.

1055721564383 is a deficient number, since it is larger than the sum of its proper divisors (17990861617).

1055721564383 is a wasteful number, since it uses less digits than its factorization.

1055721564383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621321.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 1055721564383 in words is "one trillion, fifty-five billion, seven hundred twenty-one million, five hundred sixty-four thousand, three hundred eighty-three".