1059215402591 has 4 divisors (see below), whose sum is σ = 1063123946784. Its totient is φ = 1055306858400.

The previous prime is 1059215402561. The next prime is 1059215402599. The reversal of 1059215402591 is 1952045129501.

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

It is a cyclic number.

It is not a de Polignac number, because 1059215402591 - 2⁶ = 1059215402527 is a prime.

It is a super-2 number, since 2×1059215402591² (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 (1059215402599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954271690 + ... + 1954272231.

It is an arithmetic number, because the mean of its divisors is an integer number (265780986696).

Almost surely, 2^{1059215402591} is an apocalyptic number.

1059215402591 is a deficient number, since it is larger than the sum of its proper divisors (3908544193).

1059215402591 is an equidigital number, since it uses as much as digits as its factorization.

1059215402591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908544192.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 1059215402591 in words is "one trillion, fifty-nine billion, two hundred fifteen million, four hundred two thousand, five hundred ninety-one".