1056161050499 has 4 divisors (see below), whose sum is σ = 1061166553320. Its totient is φ = 1051155547680.

The previous prime is 1056161050423. The next prime is 1056161050507. The reversal of 1056161050499 is 9940501616501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056161050499 is a prime.

It is a super-2 number, since 2×1056161050499² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056161070499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502751094 + ... + 2502751515.

It is an arithmetic number, because the mean of its divisors is an integer number (265291638330).

Almost surely, 2^{1056161050499} is an apocalyptic number.

1056161050499 is a deficient number, since it is larger than the sum of its proper divisors (5005502821).

1056161050499 is an equidigital number, since it uses as much as digits as its factorization.

1056161050499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005502820.

The product of its (nonzero) digits is 291600, while the sum is 47.

The spelling of 1056161050499 in words is "one trillion, fifty-six billion, one hundred sixty-one million, fifty thousand, four hundred ninety-nine".