1055721564382 has 4 divisors (see below), whose sum is σ = 1583582346576. Its totient is φ = 527860782190.

The previous prime is 1055721564371. The next prime is 1055721564451. The reversal of 1055721564382 is 2834651275501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1055721564382² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263930391094 + ... + 263930391097.

It is an arithmetic number, because the mean of its divisors is an integer number (395895586644).

Almost surely, 2^{1055721564382} is an apocalyptic number.

1055721564382 is a deficient number, since it is larger than the sum of its proper divisors (527860782194).

1055721564382 is an equidigital number, since it uses as much as digits as its factorization.

1055721564382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527860782193.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 1055721564382 in words is "one trillion, fifty-five billion, seven hundred twenty-one million, five hundred sixty-four thousand, three hundred eighty-two".