1055721415683 has 16 divisors (see below), whose sum is σ = 1535652835200. Its totient is φ = 639806974080.

The previous prime is 1055721415591. The next prime is 1055721415729. The reversal of 1055721415683 is 3865141275501.

It is not a de Polignac number, because 1055721415683 - 2¹³ = 1055721407491 is a prime.

It is a super-2 number, since 2×1055721415683² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055721415883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301803 + ... + 1484091.

It is an arithmetic number, because the mean of its divisors is an integer number (95978302200).

Almost surely, 2^{1055721415683} is an apocalyptic number.

1055721415683 is a deficient number, since it is larger than the sum of its proper divisors (479931419517).

1055721415683 is a wasteful number, since it uses less digits than its factorization.

1055721415683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209362.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 1055721415683 in words is "one trillion, fifty-five billion, seven hundred twenty-one million, four hundred fifteen thousand, six hundred eighty-three".