1057021156205 has 8 divisors (see below), whose sum is σ = 1449629014272. Its totient is φ = 724814507088.

The previous prime is 1057021156193. The next prime is 1057021156237. The reversal of 1057021156205 is 5026511207501.

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

It is not a de Polignac number, because 1057021156205 - 2¹⁴ = 1057021139821 is a prime.

It is a super-2 number, since 2×1057021156205² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 30200604463 = 1057021156205 / (1 + 0 + 5 + 7 + 0 + 2 + 1 + 1 + 5 + 6 + 2 + 0 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15100302197 + ... + 15100302266.

It is an arithmetic number, because the mean of its divisors is an integer number (181203626784).

Almost surely, 2^{1057021156205} is an apocalyptic number.

It is an amenable number.

1057021156205 is a deficient number, since it is larger than the sum of its proper divisors (392607858067).

1057021156205 is an equidigital number, since it uses as much as digits as its factorization.

1057021156205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30200604475.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 1057021156205 in words is "one trillion, fifty-seven billion, twenty-one million, one hundred fifty-six thousand, two hundred five".